556718238 has 16 divisors (see below), whose sum is σ = 1237151760. Its totient is φ = 185572728.

The previous prime is 556718233. The next prime is 556718273. The reversal of 556718238 is 832817655.

556718238 is a `hidden beast` number, since 5 + 567 + 1 + 82 + 3 + 8 = 666.

556718238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a junction number, because it is equal to n+sod(n) for n = 556718193 and 556718202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556718233) 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, 5154745 + ... + 5154852.

It is an arithmetic number, because the mean of its divisors is an integer number (77321985).

Almost surely, 2^556718238 is an apocalyptic number.

556718238 is an abundant number, since it is smaller than the sum of its proper divisors (680433522).

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

556718238 is a wasteful number, since it uses less digits than its factorization.

556718238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10309608 (or 10309602 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 556718238 is about 23594.8773677678. The cubic root of 556718238 is about 822.6437761365.

The spelling of 556718238 in words is "five hundred fifty-six million, seven hundred eighteen thousand, two hundred thirty-eight".