556440232 has 32 divisors (see below), whose sum is σ = 1108533600. Its totient is φ = 261105984.

The previous prime is 556440223. The next prime is 556440257. The reversal of 556440232 is 232044655.

It is a junction number, because it is equal to n+sod(n) for n = 556440194 and 556440203.

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, 843 + ... + 33370.

It is an arithmetic number, because the mean of its divisors is an integer number (34641675).

Almost surely, 2^556440232 is an apocalyptic number.

It is an amenable number.

556440232 is a deficient number, since it is larger than the sum of its proper divisors (552093368).

556440232 is a wasteful number, since it uses less digits than its factorization.

556440232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34345 (or 34341 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 556440232 is about 23588.9853957308. The cubic root of 556440232 is about 822.5068199716.

Adding to 556440232 its reverse (232044655), we get a palindrome (788484887).

It can be divided in two parts, 5564 and 40232, that added together give a square (45796 = 214²).

The spelling of 556440232 in words is "five hundred fifty-six million, four hundred forty thousand, two hundred thirty-two".