479138580 has 144 divisors (see below), whose sum is σ = 1582963200. Its totient is φ = 116847360.

The previous prime is 479138521. The next prime is 479138623. The reversal of 479138580 is 85831974.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96765 + ... + 101595.

It is an arithmetic number, because the mean of its divisors is an integer number (10992800).

Almost surely, 2^479138580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 479138580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (791481600).

479138580 is an abundant number, since it is smaller than the sum of its proper divisors (1103824620).

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

479138580 is a wasteful number, since it uses less digits than its factorization.

479138580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4894 (or 4889 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 479138580 is about 21889.2343401956. The cubic root of 479138580 is about 782.5048664751.

The spelling of 479138580 in words is "four hundred seventy-nine million, one hundred thirty-eight thousand, five hundred eighty".