381755432 has 32 divisors (see below), whose sum is σ = 736456320. Its totient is φ = 185427840.

The previous prime is 381755411. The next prime is 381755453. The reversal of 381755432 is 234557183.

It is an interprime number because it is at equal distance from previous prime (381755411) and next prime (381755453).

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, 47807 + ... + 55217.

It is an arithmetic number, because the mean of its divisors is an integer number (23014260).

Almost surely, 2^381755432 is an apocalyptic number.

It is an amenable number.

381755432 is a deficient number, since it is larger than the sum of its proper divisors (354700888).

381755432 is a wasteful number, since it uses less digits than its factorization.

381755432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7601 (or 7597 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 381755432 is about 19538.5626902288. The cubic root of 381755432 is about 725.4292706312.

The spelling of 381755432 in words is "three hundred eighty-one million, seven hundred fifty-five thousand, four hundred thirty-two".