556434020 has 24 divisors (see below), whose sum is σ = 1208806200. Its totient is φ = 214898432.

The previous prime is 556434017. The next prime is 556434037. The reversal of 556434020 is 20434655.

It can be written as a sum of positive squares in 4 ways, for example, as 17172736 + 539261284 = 4144^2 + 23222^2 .

It is a super-2 number, since 2×556434020² = 619237637226720800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479105 + ... + 480264.

It is an arithmetic number, because the mean of its divisors is an integer number (50366925).

Almost surely, 2^556434020 is an apocalyptic number.

It is an amenable number.

556434020 is an abundant number, since it is smaller than the sum of its proper divisors (652372180).

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

556434020 is a wasteful number, since it uses less digits than its factorization.

556434020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959407 (or 959405 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 556434020 is about 23588.8537237399. The cubic root of 556434020 is about 822.5037591868.

Adding to 556434020 its reverse (20434655), we get a palindrome (576868675).

The spelling of 556434020 in words is "five hundred fifty-six million, four hundred thirty-four thousand, twenty".