381172898 has 8 divisors (see below), whose sum is σ = 585056208. Its totient is φ = 186154164.

The previous prime is 381172879. The next prime is 381172937. The reversal of 381172898 is 898271183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2216036 + ... + 2216207.

It is an arithmetic number, because the mean of its divisors is an integer number (73132026).

Almost surely, 2^381172898 is an apocalyptic number.

381172898 is a deficient number, since it is larger than the sum of its proper divisors (203883310).

381172898 is a wasteful number, since it uses less digits than its factorization.

381172898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4432288.

The product of its digits is 193536, while the sum is 47.

The square root of 381172898 is about 19523.6497100312. The cubic root of 381172898 is about 725.0600968019.

The spelling of 381172898 in words is "three hundred eighty-one million, one hundred seventy-two thousand, eight hundred ninety-eight".