408863220 has 24 divisors (see below), whose sum is σ = 1144817184. Its totient is φ = 109030176.

The previous prime is 408863171. The next prime is 408863233. The reversal of 408863220 is 22368804.

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, 3407134 + ... + 3407253.

It is an arithmetic number, because the mean of its divisors is an integer number (47700716).

Almost surely, 2^408863220 is an apocalyptic number.

It is an amenable number.

408863220 is an abundant number, since it is smaller than the sum of its proper divisors (735953964).

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

408863220 is a wasteful number, since it uses less digits than its factorization.

408863220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6814399 (or 6814397 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 408863220 is about 20220.3664655218. The cubic root of 408863220 is about 742.2086557766.

The spelling of 408863220 in words is "four hundred eight million, eight hundred sixty-three thousand, two hundred twenty".