381916194 has 16 divisors (see below), whose sum is σ = 833271840. Its totient is φ = 115732160.

The previous prime is 381916123. The next prime is 381916231. The reversal of 381916194 is 491619183.

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, 2893239 + ... + 2893370.

It is an arithmetic number, because the mean of its divisors is an integer number (52079490).

Almost surely, 2^381916194 is an apocalyptic number.

381916194 is an abundant number, since it is smaller than the sum of its proper divisors (451355646).

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

381916194 is a wasteful number, since it uses less digits than its factorization.

381916194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5786625.

The product of its digits is 46656, while the sum is 42.

The square root of 381916194 is about 19542.6762240999. The cubic root of 381916194 is about 725.5310854618.

The spelling of 381916194 in words is "three hundred eighty-one million, nine hundred sixteen thousand, one hundred ninety-four".