556742928 has 160 divisors (see below), whose sum is σ = 1800956160. Its totient is φ = 144506880.

The previous prime is 556742917. The next prime is 556742951. The reversal of 556742928 is 829247655.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163968 + ... + 167328.

It is an arithmetic number, because the mean of its divisors is an integer number (11255976).

Almost surely, 2^556742928 is an apocalyptic number.

556742928 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556742928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (900478080).

556742928 is an abundant number, since it is smaller than the sum of its proper divisors (1244213232).

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

556742928 is a wasteful number, since it uses less digits than its factorization.

556742928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425 (or 3419 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The square root of 556742928 is about 23595.4005687549. The cubic root of 556742928 is about 822.6559371504.

The spelling of 556742928 in words is "five hundred fifty-six million, seven hundred forty-two thousand, nine hundred twenty-eight".