381079660 has 24 divisors (see below), whose sum is σ = 861826896. Its totient is φ = 140706240.

The previous prime is 381079651. The next prime is 381079681. The reversal of 381079660 is 66970183.

381079660 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 732586 + ... + 733105.

It is an arithmetic number, because the mean of its divisors is an integer number (35909454).

Almost surely, 2^381079660 is an apocalyptic number.

It is an amenable number.

381079660 is an abundant number, since it is smaller than the sum of its proper divisors (480747236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381079660 is a wasteful number, since it uses less digits than its factorization.

381079660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465713 (or 1465711 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 381079660 is about 19521.2617420084. The cubic root of 381079660 is about 725.0009734430. Note that the first 3 decimals are identical.

The spelling of 381079660 in words is "three hundred eighty-one million, seventy-nine thousand, six hundred sixty".