478949904 has 120 divisors (see below), whose sum is σ = 1386039512. Its totient is φ = 154275840.

The previous prime is 478949899. The next prime is 478949951. The reversal of 478949904 is 409949874.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 234090000 + 244859904 = 15300^2 + 15648^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1283862 + ... + 1284234.

Almost surely, 2^478949904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478949904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (693019756).

478949904 is an abundant number, since it is smaller than the sum of its proper divisors (907089608).

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

478949904 is a wasteful number, since it uses less digits than its factorization.

478949904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 478949904 is about 21884.9241259823. The cubic root of 478949904 is about 782.4021409604.

The spelling of 478949904 in words is "four hundred seventy-eight million, nine hundred forty-nine thousand, nine hundred four".