381294752 has 24 divisors (see below), whose sum is σ = 768985812. Its totient is φ = 185996800.

The previous prime is 381294737. The next prime is 381294763. The reversal of 381294752 is 257492183.

It can be written as a sum of positive squares in 2 ways, for example, as 378069136 + 3225616 = 19444^2 + 1796^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143999 + ... + 146622.

Almost surely, 2^381294752 is an apocalyptic number.

381294752 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

381294752 is an abundant number, since it is smaller than the sum of its proper divisors (387691060).

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

381294752 is a wasteful number, since it uses less digits than its factorization.

381294752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290672 (or 290664 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 381294752 is about 19526.7701374293. The cubic root of 381294752 is about 725.1373513850.

The spelling of 381294752 in words is "three hundred eighty-one million, two hundred ninety-four thousand, seven hundred fifty-two".