408475020 has 48 divisors (see below), whose sum is σ = 1144614240. Its totient is φ = 108842496.

The previous prime is 408475019. The next prime is 408475061. The reversal of 408475020 is 20574804.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136096 + ... + 139064.

It is an arithmetic number, because the mean of its divisors is an integer number (23846130).

Almost surely, 2^408475020 is an apocalyptic number.

It is an amenable number.

408475020 is an abundant number, since it is smaller than the sum of its proper divisors (736139220).

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

408475020 is a wasteful number, since it uses less digits than its factorization.

408475020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5274 (or 5272 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 408475020 is about 20210.7649533609. The cubic root of 408475020 is about 741.9736818112.

The spelling of 408475020 in words is "four hundred eight million, four hundred seventy-five thousand, twenty".