382801820 has 24 divisors (see below), whose sum is σ = 815884944. Its totient is φ = 150834816.

The previous prime is 382801819. The next prime is 382801849. The reversal of 382801820 is 28108283.

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, 141497 + ... + 144176.

It is an arithmetic number, because the mean of its divisors is an integer number (33995206).

Almost surely, 2^382801820 is an apocalyptic number.

It is an amenable number.

382801820 is an abundant number, since it is smaller than the sum of its proper divisors (433083124).

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

382801820 is a wasteful number, since it uses less digits than its factorization.

382801820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285749 (or 285747 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 382801820 is about 19565.3218731510. The cubic root of 382801820 is about 726.0914642156.

The spelling of 382801820 in words is "three hundred eighty-two million, eight hundred one thousand, eight hundred twenty".