399342692 has 24 divisors (see below), whose sum is σ = 800661120. Its totient is φ = 170723520.

The previous prime is 399342689. The next prime is 399342701. The reversal of 399342692 is 296243993.

It is a Smith number, since the sum of its digits (47) 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 7 ways as a sum of consecutive naturals, for example, 5984 + ... + 28887.

It is an arithmetic number, because the mean of its divisors is an integer number (33360880).

Almost surely, 2^399342692 is an apocalyptic number.

It is an amenable number.

399342692 is an abundant number, since it is smaller than the sum of its proper divisors (401318428).

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

399342692 is a wasteful number, since it uses less digits than its factorization.

399342692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35291 (or 35289 counting only the distinct ones).

The product of its digits is 629856, while the sum is 47.

The square root of 399342692 is about 19983.5605436068. The cubic root of 399342692 is about 736.4024878939.

The spelling of 399342692 in words is "three hundred ninety-nine million, three hundred forty-two thousand, six hundred ninety-two".