381099080 has 32 divisors (see below), whose sum is σ = 863654400. Its totient is φ = 151340736.

The previous prime is 381099031. The next prime is 381099091. The reversal of 381099080 is 80990183.

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, 28712 + ... + 39831.

It is an arithmetic number, because the mean of its divisors is an integer number (26989200).

Almost surely, 2^381099080 is an apocalyptic number.

It is an amenable number.

381099080 is an abundant number, since it is smaller than the sum of its proper divisors (482555320).

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

381099080 is a wasteful number, since it uses less digits than its factorization.

381099080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68693 (or 68689 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 381099080 is about 19521.7591420446. The cubic root of 381099080 is about 725.0132886982.

The spelling of 381099080 in words is "three hundred eighty-one million, ninety-nine thousand, eighty".