478739624 has 16 divisors (see below), whose sum is σ = 979240320. Its totient is φ = 217608880.

The previous prime is 478739609. The next prime is 478739671. The reversal of 478739624 is 426937874.

It is a super-2 number, since 2×478739624² = 458383255175322752, which contains 22 as substring.

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, 2720024 + ... + 2720199.

It is an arithmetic number, because the mean of its divisors is an integer number (61202520).

Almost surely, 2^478739624 is an apocalyptic number.

478739624 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

478739624 is an abundant number, since it is smaller than the sum of its proper divisors (500500696).

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

478739624 is a wasteful number, since it uses less digits than its factorization.

478739624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5440240 (or 5440236 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 50.

The square root of 478739624 is about 21880.1193781021. The cubic root of 478739624 is about 782.2876212550.

The spelling of 478739624 in words is "four hundred seventy-eight million, seven hundred thirty-nine thousand, six hundred twenty-four".