381580904 has 8 divisors (see below), whose sum is σ = 715464210. Its totient is φ = 190790448.

The previous prime is 381580897. The next prime is 381580919. The reversal of 381580904 is 409085183.

It can be written as a sum of positive squares in only one way, i.e., 331312804 + 50268100 = 18202^2 + 7090^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23848799 + ... + 23848814.

Almost surely, 2^381580904 is an apocalyptic number.

It is an amenable number.

381580904 is a deficient number, since it is larger than the sum of its proper divisors (333883306).

381580904 is a wasteful number, since it uses less digits than its factorization.

381580904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47697619 (or 47697615 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 381580904 is about 19534.0959350567. The cubic root of 381580904 is about 725.3187050632.

The spelling of 381580904 in words is "three hundred eighty-one million, five hundred eighty thousand, nine hundred four".