556233690 has 16 divisors (see below), whose sum is σ = 1334960928. Its totient is φ = 148328976.

The previous prime is 556233611. The next prime is 556233701. The reversal of 556233690 is 96332655.

It is a super-2 number, since 2×556233690² = 618791835782032200, which contains 22 as substring.

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, 9270532 + ... + 9270591.

It is an arithmetic number, because the mean of its divisors is an integer number (83435058).

Almost surely, 2^556233690 is an apocalyptic number.

556233690 is an abundant number, since it is smaller than the sum of its proper divisors (778727238).

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

556233690 is a wasteful number, since it uses less digits than its factorization.

556233690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18541133.

The product of its (nonzero) digits is 145800, while the sum is 39.

The square root of 556233690 is about 23584.6070562984. The cubic root of 556233690 is about 822.4050401113.

The spelling of 556233690 in words is "five hundred fifty-six million, two hundred thirty-three thousand, six hundred ninety".