476640820 has 24 divisors (see below), whose sum is σ = 1005984000. Its totient is φ = 189696672.

The previous prime is 476640803. The next prime is 476640833. The reversal of 476640820 is 28046674.

It is a self number, because there is not a number n which added to its sum of digits gives 476640820.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55900 + ... + 63859.

It is an arithmetic number, because the mean of its divisors is an integer number (41916000).

Almost surely, 2^476640820 is an apocalyptic number.

It is an amenable number.

476640820 is an abundant number, since it is smaller than the sum of its proper divisors (529343180).

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

476640820 is a wasteful number, since it uses less digits than its factorization.

476640820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119967 (or 119965 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 476640820 is about 21832.1052580826. The cubic root of 476640820 is about 781.1427584424.

The spelling of 476640820 in words is "four hundred seventy-six million, six hundred forty thousand, eight hundred twenty".