556404234 has 32 divisors (see below), whose sum is σ = 1126371840. Its totient is φ = 183218112.

The previous prime is 556404221. The next prime is 556404259. The reversal of 556404234 is 432404655.

It is a super-2 number, since 2×556404234² = 619171343226253512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 556404195 and 556404204.

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, 258567 + ... + 260709.

It is an arithmetic number, because the mean of its divisors is an integer number (35199120).

Almost surely, 2^556404234 is an apocalyptic number.

556404234 is an abundant number, since it is smaller than the sum of its proper divisors (569967606).

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

556404234 is a wasteful number, since it uses less digits than its factorization.

556404234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2654.

The product of its (nonzero) digits is 57600, while the sum is 33.

The square root of 556404234 is about 23588.2223577785. Note that the first 3 decimals coincide. The cubic root of 556404234 is about 822.4890826734.

Adding to 556404234 its reverse (432404655), we get a palindrome (988808889).

The spelling of 556404234 in words is "five hundred fifty-six million, four hundred four thousand, two hundred thirty-four".