381583016 has 16 divisors (see below), whose sum is σ = 715864500. Its totient is φ = 190685824.

The previous prime is 381582991. The next prime is 381583019. The reversal of 381583016 is 610385183.

It can be written as a sum of positive squares in 2 ways, for example, as 344250916 + 37332100 = 18554^2 + 6110^2 .

It is not an unprimeable number, because it can be changed into a prime (381583019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3356 + ... + 27828.

Almost surely, 2^381583016 is an apocalyptic number.

It is an amenable number.

381583016 is a deficient number, since it is larger than the sum of its proper divisors (334281484).

381583016 is a wasteful number, since it uses less digits than its factorization.

381583016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26428 (or 26424 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 381583016 is about 19534.1499943048. The cubic root of 381583016 is about 725.3200432419.

The spelling of 381583016 in words is "three hundred eighty-one million, five hundred eighty-three thousand, sixteen".