382821808 has 20 divisors (see below), whose sum is σ = 767294640. Its totient is φ = 184810304.

The previous prime is 382821781. The next prime is 382821833. The reversal of 382821808 is 808128283.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412060 + ... + 412987.

It is an arithmetic number, because the mean of its divisors is an integer number (38364732).

Almost surely, 2^382821808 is an apocalyptic number.

It is an amenable number.

382821808 is an abundant number, since it is smaller than the sum of its proper divisors (384472832).

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

382821808 is a wasteful number, since it uses less digits than its factorization.

382821808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825084 (or 825078 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 382821808 is about 19565.8326681999. The cubic root of 382821808 is about 726.1041016195.

The spelling of 382821808 in words is "three hundred eighty-two million, eight hundred twenty-one thousand, eight hundred eight".