381215792 has 20 divisors (see below), whose sum is σ = 738921456. Its totient is φ = 190526400.

The previous prime is 381215749. The next prime is 381215801. The reversal of 381215792 is 297512183.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 54917 + ... + 61467.

Almost surely, 2^381215792 is an apocalyptic number.

It is an amenable number.

381215792 is a deficient number, since it is larger than the sum of its proper divisors (357705664).

381215792 is a wasteful number, since it uses less digits than its factorization.

381215792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10196 (or 10190 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The square root of 381215792 is about 19524.7481929985. The cubic root of 381215792 is about 725.0872931752.

The spelling of 381215792 in words is "three hundred eighty-one million, two hundred fifteen thousand, seven hundred ninety-two".