478648434 has 24 divisors (see below), whose sum is σ = 1044711792. Its totient is φ = 144991120.

The previous prime is 478648433. The next prime is 478648441. The reversal of 478648434 is 434846874.

It is not an unprimeable number, because it can be changed into a prime (478648433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176392 + ... + 179084.

It is an arithmetic number, because the mean of its divisors is an integer number (43529658).

Almost surely, 2^478648434 is an apocalyptic number.

478648434 is an abundant number, since it is smaller than the sum of its proper divisors (566063358).

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

478648434 is an equidigital number, since it uses as much as digits as its factorization.

478648434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5402 (or 2709 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 48.

The square root of 478648434 is about 21878.0354236846. The cubic root of 478648434 is about 782.2379482285.

The spelling of 478648434 in words is "four hundred seventy-eight million, six hundred forty-eight thousand, four hundred thirty-four".