556673390 has 32 divisors (see below), whose sum is σ = 1233247680. Its totient is φ = 176177664.

The previous prime is 556673371. The next prime is 556673401. The reversal of 556673390 is 93376655.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304955 + ... + 306774.

It is an arithmetic number, because the mean of its divisors is an integer number (38538990).

Almost surely, 2^556673390 is an apocalyptic number.

556673390 is an abundant number, since it is smaller than the sum of its proper divisors (676574290).

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

556673390 is a wasteful number, since it uses less digits than its factorization.

556673390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611756.

The product of its (nonzero) digits is 510300, while the sum is 44.

The square root of 556673390 is about 23593.9269728462. The cubic root of 556673390 is about 822.6216854173.

The spelling of 556673390 in words is "five hundred fifty-six million, six hundred seventy-three thousand, three hundred ninety".