381559912 has 16 divisors (see below), whose sum is σ = 730647360. Its totient is φ = 186720624.

The previous prime is 381559907. The next prime is 381559939. The reversal of 381559912 is 219955183.

It is a happy number.

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, 507018 + ... + 507769.

It is an arithmetic number, because the mean of its divisors is an integer number (45665460).

Almost surely, 2^381559912 is an apocalyptic number.

It is an amenable number.

381559912 is a deficient number, since it is larger than the sum of its proper divisors (349087448).

381559912 is a wasteful number, since it uses less digits than its factorization.

381559912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014840 (or 1014836 counting only the distinct ones).

The product of its digits is 97200, while the sum is 43.

The square root of 381559912 is about 19533.5586107601. The cubic root of 381559912 is about 725.3054041098.

The spelling of 381559912 in words is "three hundred eighty-one million, five hundred fifty-nine thousand, nine hundred twelve".