381015456 has 48 divisors (see below), whose sum is σ = 1034661600. Its totient is φ = 122624768.

The previous prime is 381015449. The next prime is 381015461. The reversal of 381015456 is 654510183.

It is a tau number, because it is divible by the number of its divisors (48).

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, 65646 + ... + 71213.

It is an arithmetic number, because the mean of its divisors is an integer number (21555450).

Almost surely, 2^381015456 is an apocalyptic number.

It is an amenable number.

381015456 is an abundant number, since it is smaller than the sum of its proper divisors (653646144).

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

381015456 is a wasteful number, since it uses less digits than its factorization.

381015456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136901 (or 136893 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 381015456 is about 19519.6172093615. The cubic root of 381015456 is about 724.9602552925.

The spelling of 381015456 in words is "three hundred eighty-one million, fifteen thousand, four hundred fifty-six".