556347328 has 56 divisors (see below), whose sum is σ = 1158548864. Its totient is φ = 264729600.

The previous prime is 556347221. The next prime is 556347329. The reversal of 556347328 is 823743655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556347329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118726 + ... + 123322.

Almost surely, 2^556347328 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 556347328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (579274432).

556347328 is an abundant number, since it is smaller than the sum of its proper divisors (602201536).

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

556347328 is a wasteful number, since it uses less digits than its factorization.

556347328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4701 (or 4691 counting only the distinct ones).

The product of its digits is 604800, while the sum is 43.

The square root of 556347328 is about 23587.0160893658. The cubic root of 556347328 is about 822.4610418135.

The spelling of 556347328 in words is "five hundred fifty-six million, three hundred forty-seven thousand, three hundred twenty-eight".