381380512 has 24 divisors (see below), whose sum is σ = 751709700. Its totient is φ = 190470144.

The previous prime is 381380509. The next prime is 381380539. The reversal of 381380512 is 215083183.

It can be written as a sum of positive squares in 2 ways, for example, as 370331536 + 11048976 = 19244^2 + 3324^2 .

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, 23314 + ... + 36142.

Almost surely, 2^381380512 is an apocalyptic number.

381380512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

381380512 is a deficient number, since it is larger than the sum of its proper divisors (370329188).

381380512 is a wasteful number, since it uses less digits than its factorization.

381380512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13768 (or 13760 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 381380512 is about 19528.9659736505. The cubic root of 381380512 is about 725.1917127569.

The spelling of 381380512 in words is "three hundred eighty-one million, three hundred eighty thousand, five hundred twelve".