478452864 has 32 divisors (see below), whose sum is σ = 1270891440. Its totient is φ = 159484160.

The previous prime is 478452841. The next prime is 478452893. The reversal of 478452864 is 468254874.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622602 + ... + 623369.

Almost surely, 2^478452864 is an apocalyptic number.

It is an amenable number.

478452864 is an abundant number, since it is smaller than the sum of its proper divisors (792438576).

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

478452864 is a wasteful number, since it uses less digits than its factorization.

478452864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245988 (or 1245976 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 48.

The square root of 478452864 is about 21873.5654158164. The cubic root of 478452864 is about 782.1313960391.

The spelling of 478452864 in words is "four hundred seventy-eight million, four hundred fifty-two thousand, eight hundred sixty-four".