382904280 has 256 divisors, whose sum is σ = 1407974400. Its totient is φ = 91791360.

The previous prime is 382904257. The next prime is 382904297. The reversal of 382904280 is 82409283.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1983864 + ... + 1984056.

It is an arithmetic number, because the mean of its divisors is an integer number (5499900).

Almost surely, 2^382904280 is an apocalyptic number.

382904280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 382904280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (703987200).

382904280 is an abundant number, since it is smaller than the sum of its proper divisors (1025070120).

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

382904280 is a wasteful number, since it uses less digits than its factorization.

382904280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 381 counting only the distinct ones).

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

The square root of 382904280 is about 19567.9401062043. The cubic root of 382904280 is about 726.1562398524.

The spelling of 382904280 in words is "three hundred eighty-two million, nine hundred four thousand, two hundred eighty".