381294756 has 24 divisors (see below), whose sum is σ = 988542240. Its totient is φ = 127098216.

The previous prime is 381294737. The next prime is 381294763. The reversal of 381294756 is 657492183.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1765146 + ... + 1765361.

It is an arithmetic number, because the mean of its divisors is an integer number (41189260).

Almost surely, 2^381294756 is an apocalyptic number.

381294756 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

381294756 is an abundant number, since it is smaller than the sum of its proper divisors (607247484).

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

381294756 is a wasteful number, since it uses less digits than its factorization.

381294756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3530520 (or 3530512 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 381294756 is about 19526.7702398528. The cubic root of 381294756 is about 725.1373539207.

The spelling of 381294756 in words is "three hundred eighty-one million, two hundred ninety-four thousand, seven hundred fifty-six".