381892032 has 42 divisors (see below), whose sum is σ = 1094626208. Its totient is φ = 127297152.

The previous prime is 381892013. The next prime is 381892033. The reversal of 381892032 is 230298183.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381892033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 330928 + ... + 332079.

Almost surely, 2^381892032 is an apocalyptic number.

381892032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

381892032 is an abundant number, since it is smaller than the sum of its proper divisors (712734176).

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

381892032 is a wasteful number, since it uses less digits than its factorization.

381892032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663025 (or 663012 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 381892032 is about 19542.0580287748. The cubic root of 381892032 is about 725.5157848522.

The spelling of 381892032 in words is "three hundred eighty-one million, eight hundred ninety-two thousand, thirty-two".