381173516 has 24 divisors (see below), whose sum is σ = 710633280. Its totient is φ = 178377552.

The previous prime is 381173501. The next prime is 381173537. The reversal of 381173516 is 615371183.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23906 + ... + 36521.

It is an arithmetic number, because the mean of its divisors is an integer number (29609720).

Almost surely, 2^381173516 is an apocalyptic number.

It is an amenable number.

381173516 is a deficient number, since it is larger than the sum of its proper divisors (329459764).

381173516 is a wasteful number, since it uses less digits than its factorization.

381173516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60533 (or 60531 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 381173516 is about 19523.6655369836. The cubic root of 381173516 is about 725.0604886511.

The spelling of 381173516 in words is "three hundred eighty-one million, one hundred seventy-three thousand, five hundred sixteen".