399261714 has 16 divisors (see below), whose sum is σ = 811614720. Its totient is φ = 130905360.

The previous prime is 399261701. The next prime is 399261739. The reversal of 399261714 is 417162993.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545074 + ... + 545805.

It is an arithmetic number, because the mean of its divisors is an integer number (50725920).

Almost surely, 2^399261714 is an apocalyptic number.

399261714 is an abundant number, since it is smaller than the sum of its proper divisors (412353006).

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

399261714 is a wasteful number, since it uses less digits than its factorization.

399261714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090945.

The product of its digits is 81648, while the sum is 42.

The square root of 399261714 is about 19981.5343254716. The cubic root of 399261714 is about 736.3527090673.

The spelling of 399261714 in words is "three hundred ninety-nine million, two hundred sixty-one thousand, seven hundred fourteen".