381481316 has 12 divisors (see below), whose sum is σ = 702728880. Its totient is φ = 180701640.

The previous prime is 381481267. The next prime is 381481327. The reversal of 381481316 is 613184183.

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, 2509670 + ... + 2509821.

It is an arithmetic number, because the mean of its divisors is an integer number (58560740).

Almost surely, 2^381481316 is an apocalyptic number.

It is an amenable number.

381481316 is a deficient number, since it is larger than the sum of its proper divisors (321247564).

381481316 is a wasteful number, since it uses less digits than its factorization.

381481316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5019514 (or 5019512 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 381481316 is about 19531.5466873466. The cubic root of 381481316 is about 725.2555997703.

The spelling of 381481316 in words is "three hundred eighty-one million, four hundred eighty-one thousand, three hundred sixteen".