556838028 has 18 divisors (see below), whose sum is σ = 1407562884. Its totient is φ = 185612664.

The previous prime is 556838017. The next prime is 556838059. The reversal of 556838028 is 820838655.

It is a happy number.

556838028 is a `hidden beast` number, since 5 + 568 + 3 + 80 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7733826 + ... + 7733897.

It is an arithmetic number, because the mean of its divisors is an integer number (78197938).

Almost surely, 2^556838028 is an apocalyptic number.

It is an amenable number.

556838028 is an abundant number, since it is smaller than the sum of its proper divisors (850724856).

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

556838028 is a wasteful number, since it uses less digits than its factorization.

556838028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15467733 (or 15467728 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 556838028 is about 23597.4157059624. The cubic root of 556838028 is about 822.7027751203.

The spelling of 556838028 in words is "five hundred fifty-six million, eight hundred thirty-eight thousand, twenty-eight".