478218874 has 64 divisors (see below), whose sum is σ = 905126400. Its totient is φ = 184762368.

The previous prime is 478218773. The next prime is 478218887. The reversal of 478218874 is 478812874.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1331907 + ... + 1332265.

It is an arithmetic number, because the mean of its divisors is an integer number (14142600).

Almost surely, 2^478218874 is an apocalyptic number.

478218874 is a deficient number, since it is larger than the sum of its proper divisors (426907526).

478218874 is a wasteful number, since it uses less digits than its factorization.

478218874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607.

The product of its digits is 802816, while the sum is 49.

The square root of 478218874 is about 21868.2160680747. The cubic root of 478218874 is about 782.0038733638.

The spelling of 478218874 in words is "four hundred seventy-eight million, two hundred eighteen thousand, eight hundred seventy-four".