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1234441420 = 225437971801
BaseRepresentation
bin100100110010100…
…0001010011001100
310012000211010021121
41021211001103030
510012004111140
6322254210324
742406402402
oct11145012314
93160733247
101234441420
115838a0123
122a54b39a4
13168992c14
14b9d37472
157359064a
hex499414cc

1234441420 has 48 divisors (see below), whose sum is σ = 2657416608. Its totient is φ = 481420800.

The previous prime is 1234441409. The next prime is 1234441423. The reversal of 1234441420 is 241444321.

It is not an unprimeable number, because it can be changed into a prime (1234441423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 684520 + ... + 686320.

It is an arithmetic number, because the mean of its divisors is an integer number (55362846).

Almost surely, 21234441420 is an apocalyptic number.

1234441420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1234441420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1328708304).

1234441420 is an abundant number, since it is smaller than the sum of its proper divisors (1422975188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1234441420 is a wasteful number, since it uses less digits than its factorization.

1234441420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650 (or 2648 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1234441420 is about 35134.6185406929. The cubic root of 1234441420 is about 1072.7293467572.

Adding to 1234441420 its reverse (241444321), we get a palindrome (1475885741).

The spelling of 1234441420 in words is "one billion, two hundred thirty-four million, four hundred forty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 797 860 1594 1801 3188 3602 3985 7204 7970 9005 15940 18010 34271 36020 68542 77443 137084 154886 171355 309772 342710 387215 685420 774430 1435397 1548860 2870794 5741588 7176985 14353970 28707940 61722071 123444142 246888284 308610355 617220710 1234441420