1234434320 has 80 divisors (see below), whose sum is σ = 3349928448. Its totient is φ = 414220800.

The previous prime is 1234434301. The next prime is 1234434391. The reversal of 1234434320 is 234344321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1234434320.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2870 + ... + 49770.

Almost surely, 2^1234434320 is an apocalyptic number.

1234434320 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 1234434320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1674964224).

1234434320 is an abundant number, since it is smaller than the sum of its proper divisors (2115494128).

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

1234434320 is a wasteful number, since it uses less digits than its factorization.

1234434320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46968 (or 46962 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 1234434320 is about 35134.5175006005. The cubic root of 1234434320 is about 1072.7272901204.

Adding to 1234434320 its reverse (234344321), we get a palindrome (1468778641).

It can be divided in two parts, 12344 and 34320, that added together give a palindrome (46664).

The spelling of 1234434320 in words is "one billion, two hundred thirty-four million, four hundred thirty-four thousand, three hundred twenty".