381523460 has 48 divisors (see below), whose sum is σ = 821499840. Its totient is φ = 148790400.

The previous prime is 381523451. The next prime is 381523489. The reversal of 381523460 is 64325183.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133931 + ... + 136749.

It is an arithmetic number, because the mean of its divisors is an integer number (17114580).

Almost surely, 2^381523460 is an apocalyptic number.

It is an amenable number.

381523460 is an abundant number, since it is smaller than the sum of its proper divisors (439976380).

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

381523460 is a wasteful number, since it uses less digits than its factorization.

381523460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2996 (or 2994 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 381523460 is about 19532.6255275629. The cubic root of 381523460 is about 725.2823062303.

The spelling of 381523460 in words is "three hundred eighty-one million, five hundred twenty-three thousand, four hundred sixty".