479261139 has 16 divisors (see below), whose sum is σ = 744083712. Its totient is φ = 268695648.

The previous prime is 479261113. The next prime is 479261171. The reversal of 479261139 is 931162974.

It is not a de Polignac number, because 479261139 - 2⁹ = 479260627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 479261139.

It is not an unprimeable number, because it can be changed into a prime (479263139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214189 + ... + 216414.

It is an arithmetic number, because the mean of its divisors is an integer number (46505232).

Almost surely, 2^479261139 is an apocalyptic number.

479261139 is a deficient number, since it is larger than the sum of its proper divisors (264822573).

479261139 is a wasteful number, since it uses less digits than its factorization.

479261139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430666.

The product of its digits is 81648, while the sum is 42.

The square root of 479261139 is about 21892.0336880793. The cubic root of 479261139 is about 782.5715798381.

The spelling of 479261139 in words is "four hundred seventy-nine million, two hundred sixty-one thousand, one hundred thirty-nine".