1004220340 has 12 divisors (see below), whose sum is σ = 2108862756. Its totient is φ = 401688128.

The previous prime is 1004220337. The next prime is 1004220341. The reversal of 1004220340 is 430224001.

It can be written as a sum of positive squares in 2 ways, for example, as 295702416 + 708517924 = 17196^2 + 26618^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004220341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25105489 + ... + 25105528.

It is an arithmetic number, because the mean of its divisors is an integer number (175738563).

Almost surely, 2^1004220340 is an apocalyptic number.

1004220340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004220340 is an abundant number, since it is smaller than the sum of its proper divisors (1104642416).

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

1004220340 is a wasteful number, since it uses less digits than its factorization.

1004220340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50211026 (or 50211024 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1004220340 is about 31689.4357791362. The cubic root of 1004220340 is about 1001.4048055971.

Adding to 1004220340 its reverse (430224001), we get a palindrome (1434444341).

The spelling of 1004220340 in words is "one billion, four million, two hundred twenty thousand, three hundred forty".