478224456 has 16 divisors (see below), whose sum is σ = 1195561200. Its totient is φ = 159408144.

The previous prime is 478224449. The next prime is 478224473. The reversal of 478224456 is 654422874.

It is a happy number.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 9962986 + ... + 9963033.

It is an arithmetic number, because the mean of its divisors is an integer number (74722575).

Almost surely, 2^478224456 is an apocalyptic number.

It is an amenable number.

478224456 is an abundant number, since it is smaller than the sum of its proper divisors (717336744).

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

478224456 is a wasteful number, since it uses less digits than its factorization.

478224456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19926028 (or 19926024 counting only the distinct ones).

The product of its digits is 430080, while the sum is 42.

The square root of 478224456 is about 21868.3436958541. The cubic root of 478224456 is about 782.0069159934.

The spelling of 478224456 in words is "four hundred seventy-eight million, two hundred twenty-four thousand, four hundred fifty-six".