478968231 has 32 divisors (see below), whose sum is σ = 746536960. Its totient is φ = 267512544.

The previous prime is 478968229. The next prime is 478968233. The reversal of 478968231 is 132869874.

It is an interprime number because it is at equal distance from previous prime (478968229) and next prime (478968233).

It is not a de Polignac number, because 478968231 - 2¹ = 478968229 is a prime.

It is a super-2 number, since 2×478968231² = 458821132614538722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478968233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169476 + ... + 172278.

It is an arithmetic number, because the mean of its divisors is an integer number (23329280).

Almost surely, 2^478968231 is an apocalyptic number.

478968231 is a deficient number, since it is larger than the sum of its proper divisors (267568729).

478968231 is a wasteful number, since it uses less digits than its factorization.

478968231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995.

The product of its digits is 580608, while the sum is 48.

The square root of 478968231 is about 21885.3428348747. The cubic root of 478968231 is about 782.4121203626.

The spelling of 478968231 in words is "four hundred seventy-eight million, nine hundred sixty-eight thousand, two hundred thirty-one".