381170394 has 32 divisors (see below), whose sum is σ = 924050880. Its totient is φ = 115506000.

The previous prime is 381170369. The next prime is 381170407. The reversal of 381170394 is 493071183.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320257 + ... + 321444.

It is an arithmetic number, because the mean of its divisors is an integer number (28876590).

Almost surely, 2^381170394 is an apocalyptic number.

381170394 is an abundant number, since it is smaller than the sum of its proper divisors (542880486).

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

381170394 is a wasteful number, since it uses less digits than its factorization.

381170394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641723 (or 641717 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 381170394 is about 19523.5855825717. The cubic root of 381170394 is about 725.0585091108.

The spelling of 381170394 in words is "three hundred eighty-one million, one hundred seventy thousand, three hundred ninety-four".