381998914 has 16 divisors (see below), whose sum is σ = 657989280. Its totient is φ = 164496960.

The previous prime is 381998879. The next prime is 381998921. The reversal of 381998914 is 419899183.

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, 456519 + ... + 457354.

It is an arithmetic number, because the mean of its divisors is an integer number (41124330).

Almost surely, 2^381998914 is an apocalyptic number.

381998914 is a deficient number, since it is larger than the sum of its proper divisors (275990366).

381998914 is a wasteful number, since it uses less digits than its factorization.

381998914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913905.

The product of its digits is 559872, while the sum is 52.

The square root of 381998914 is about 19544.7925033754. The cubic root of 381998914 is about 725.5834630950.

The spelling of 381998914 in words is "three hundred eighty-one million, nine hundred ninety-eight thousand, nine hundred fourteen".