399179914 has 32 divisors (see below), whose sum is σ = 698990976. Its totient is φ = 167443200.

The previous prime is 399179887. The next prime is 399179947. The reversal of 399179914 is 419971993.

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, 138589 + ... + 141439.

It is an arithmetic number, because the mean of its divisors is an integer number (21843468).

Almost surely, 2^399179914 is an apocalyptic number.

399179914 is a deficient number, since it is larger than the sum of its proper divisors (299811062).

399179914 is a wasteful number, since it uses less digits than its factorization.

399179914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3070.

The product of its digits is 551124, while the sum is 52.

The square root of 399179914 is about 19979.4873307600. The cubic root of 399179914 is about 736.3024181065.

The spelling of 399179914 in words is "three hundred ninety-nine million, one hundred seventy-nine thousand, nine hundred fourteen".