381316180 has 24 divisors (see below), whose sum is σ = 915159168. Its totient is φ = 130736928.

The previous prime is 381316147. The next prime is 381316183. The reversal of 381316180 is 81613183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381316183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1361704 + ... + 1361983.

It is an arithmetic number, because the mean of its divisors is an integer number (38131632).

Almost surely, 2^381316180 is an apocalyptic number.

It is an amenable number.

381316180 is an abundant number, since it is smaller than the sum of its proper divisors (533842988).

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

381316180 is a wasteful number, since it uses less digits than its factorization.

381316180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723703 (or 2723701 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 381316180 is about 19527.3188123716. The cubic root of 381316180 is about 725.1509348852.

The spelling of 381316180 in words is "three hundred eighty-one million, three hundred sixteen thousand, one hundred eighty".