478004490 has 40 divisors (see below), whose sum is σ = 1285303140. Its totient is φ = 127467648.

The previous prime is 478004473. The next prime is 478004491. The reversal of 478004490 is 94400874.

It can be written as a sum of positive squares in 2 ways, for example, as 473976441 + 4028049 = 21771^2 + 2007^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (478004491) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 294255 + ... + 295874.

Almost surely, 2^478004490 is an apocalyptic number.

478004490 is an abundant number, since it is smaller than the sum of its proper divisors (807298650).

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

478004490 is a wasteful number, since it uses less digits than its factorization.

478004490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590148 (or 590139 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 478004490 is about 21863.3137927442. The cubic root of 478004490 is about 781.8869992810.

The spelling of 478004490 in words is "four hundred seventy-eight million, four thousand, four hundred ninety".