382820904 has 80 divisors (see below), whose sum is σ = 1078160820. Its totient is φ = 126904320.

The previous prime is 382820899. The next prime is 382820923. The reversal of 382820904 is 409028283.

It can be written as a sum of positive squares in 2 ways, for example, as 374422500 + 8398404 = 19350^2 + 2898^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 123534 + ... + 126594.

Almost surely, 2^382820904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 382820904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539080410).

382820904 is an abundant number, since it is smaller than the sum of its proper divisors (695339916).

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

382820904 is a wasteful number, since it uses less digits than its factorization.

382820904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3272 (or 3259 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 382820904 is about 19565.8095666906. The cubic root of 382820904 is about 726.1035300754.

The spelling of 382820904 in words is "three hundred eighty-two million, eight hundred twenty thousand, nine hundred four".