479138556 has 48 divisors (see below), whose sum is σ = 1205404704. Its totient is φ = 147254016.

The previous prime is 479138521. The next prime is 479138623. The reversal of 479138556 is 655831974.

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, 213070 + ... + 215306.

It is an arithmetic number, because the mean of its divisors is an integer number (25112598).

Almost surely, 2^479138556 is an apocalyptic number.

It is an amenable number.

479138556 is an abundant number, since it is smaller than the sum of its proper divisors (726266148).

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

479138556 is a wasteful number, since it uses less digits than its factorization.

479138556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3630 (or 3628 counting only the distinct ones).

The product of its digits is 907200, while the sum is 48.

The square root of 479138556 is about 21889.2337919809. The cubic root of 479138556 is about 782.5048534099.

The spelling of 479138556 in words is "four hundred seventy-nine million, one hundred thirty-eight thousand, five hundred fifty-six".