399351464 has 16 divisors (see below), whose sum is σ = 759042420. Its totient is φ = 196940160.

The previous prime is 399351451. The next prime is 399351473. The reversal of 399351464 is 464153993.

It can be written as a sum of positive squares in 2 ways, for example, as 398800900 + 550564 = 19970^2 + 742^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341327 + ... + 342494.

Almost surely, 2^399351464 is an apocalyptic number.

It is an amenable number.

399351464 is a deficient number, since it is larger than the sum of its proper divisors (359690956).

399351464 is a wasteful number, since it uses less digits than its factorization.

399351464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683900 (or 683896 counting only the distinct ones).

The product of its digits is 349920, while the sum is 44.

The square root of 399351464 is about 19983.7800228085. The cubic root of 399351464 is about 736.4078798171.

The spelling of 399351464 in words is "three hundred ninety-nine million, three hundred fifty-one thousand, four hundred sixty-four".