381936756 has 24 divisors (see below), whose sum is σ = 943608960. Its totient is φ = 119823232.

The previous prime is 381936749. The next prime is 381936769. The reversal of 381936756 is 657639183.

It is a happy number.

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, 935916 + ... + 936323.

It is an arithmetic number, because the mean of its divisors is an integer number (39317040).

Almost surely, 2^381936756 is an apocalyptic number.

It is an amenable number.

381936756 is an abundant number, since it is smaller than the sum of its proper divisors (561672204).

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

381936756 is a wasteful number, since it uses less digits than its factorization.

381936756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872263 (or 1872261 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The square root of 381936756 is about 19543.2022964508. The cubic root of 381936756 is about 725.5441058597.

The spelling of 381936756 in words is "three hundred eighty-one million, nine hundred thirty-six thousand, seven hundred fifty-six".