478940492 has 12 divisors (see below), whose sum is σ = 844264680. Its totient is φ = 237722016.

The previous prime is 478940491. The next prime is 478940513. The reversal of 478940492 is 294049874.

It is not an unprimeable number, because it can be changed into a prime (478940491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 436442 + ... + 437537.

It is an arithmetic number, because the mean of its divisors is an integer number (70355390).

Almost surely, 2^478940492 is an apocalyptic number.

It is an amenable number.

478940492 is a deficient number, since it is larger than the sum of its proper divisors (365324188).

478940492 is a wasteful number, since it uses less digits than its factorization.

478940492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874120 (or 874118 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 478940492 is about 21884.7090910526. The cubic root of 478940492 is about 782.3970158474.

The spelling of 478940492 in words is "four hundred seventy-eight million, nine hundred forty thousand, four hundred ninety-two".