478164732 has 24 divisors (see below), whose sum is σ = 1116157056. Its totient is φ = 159325488.

The previous prime is 478164707. The next prime is 478164749. The reversal of 478164732 is 237461874.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31993 + ... + 44495.

It is an arithmetic number, because the mean of its divisors is an integer number (46506544).

Almost surely, 2^478164732 is an apocalyptic number.

It is an amenable number.

478164732 is an abundant number, since it is smaller than the sum of its proper divisors (637992324).

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

478164732 is a wasteful number, since it uses less digits than its factorization.

478164732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15697 (or 15695 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 478164732 is about 21866.9781177007. The cubic root of 478164732 is about 781.9743604818.

The spelling of 478164732 in words is "four hundred seventy-eight million, one hundred sixty-four thousand, seven hundred thirty-two".