478989178 has 12 divisors (see below), whose sum is σ = 763234542. Its totient is φ = 225406400.

The previous prime is 478989151. The next prime is 478989179. The reversal of 478989178 is 871989874.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 467986689 + 11002489 = 21633^2 + 3317^2 .

It is a super-2 number, since 2×478989178² = 458861265282231368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (478989179) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 413773 + ... + 414928.

Almost surely, 2^478989178 is an apocalyptic number.

478989178 is a deficient number, since it is larger than the sum of its proper divisors (284245364).

478989178 is a wasteful number, since it uses less digits than its factorization.

478989178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828737 (or 828720 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 61.

The square root of 478989178 is about 21885.8213919423. The cubic root of 478989178 is about 782.4235260932.

The spelling of 478989178 in words is "four hundred seventy-eight million, nine hundred eighty-nine thousand, one hundred seventy-eight".