556818432 has 112 divisors (see below), whose sum is σ = 1504614720. Its totient is φ = 183140352.

The previous prime is 556818421. The next prime is 556818467. The reversal of 556818432 is 234818655.

It is a congruent number.

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, 3415983 + ... + 3416145.

It is an arithmetic number, because the mean of its divisors is an integer number (13434060).

Almost surely, 2^556818432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556818432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752307360).

556818432 is an abundant number, since it is smaller than the sum of its proper divisors (947796288).

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

556818432 is a wasteful number, since it uses less digits than its factorization.

556818432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 307 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The square root of 556818432 is about 23597.0004873501. Note that the first 3 decimals coincide. The cubic root of 556818432 is about 822.6931242751.

The spelling of 556818432 in words is "five hundred fifty-six million, eight hundred eighteen thousand, four hundred thirty-two".