382631640 has 64 divisors (see below), whose sum is σ = 1165052160. Its totient is φ = 100510080.

The previous prime is 382631581. The next prime is 382631677. The reversal of 382631640 is 46136283.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15756 + ... + 31835.

It is an arithmetic number, because the mean of its divisors is an integer number (18203940).

Almost surely, 2^382631640 is an apocalyptic number.

382631640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

382631640 is an abundant number, since it is smaller than the sum of its proper divisors (782420520).

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

382631640 is a wasteful number, since it uses less digits than its factorization.

382631640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47672 (or 47668 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 382631640 is about 19560.9723684688. The cubic root of 382631640 is about 725.9838501671.

It can be divided in two parts, 38263 and 1640, that added together give a triangular number (39903 = T₂₈₂).

The spelling of 382631640 in words is "three hundred eighty-two million, six hundred thirty-one thousand, six hundred forty".