381456908 has 12 divisors (see below), whose sum is σ = 762913872. Its totient is φ = 163481520.

The previous prime is 381456899. The next prime is 381456917. The reversal of 381456908 is 809654183.

It is an interprime number because it is at equal distance from previous prime (381456899) and next prime (381456917).

381456908 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 6811703 + ... + 6811758.

It is an arithmetic number, because the mean of its divisors is an integer number (63576156).

Almost surely, 2^381456908 is an apocalyptic number.

It is an amenable number.

381456908 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

381456908 is a wasteful number, since it uses less digits than its factorization.

381456908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13623472 (or 13623470 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 381456908 is about 19530.9218420432. The cubic root of 381456908 is about 725.2401316329.

The spelling of 381456908 in words is "three hundred eighty-one million, four hundred fifty-six thousand, nine hundred eight".