399004302 has 16 divisors (see below), whose sum is σ = 800064720. Its totient is φ = 132658752.

The previous prime is 399004279. The next prime is 399004303. The reversal of 399004302 is 203400993.

It is a self number, because there is not a number n which added to its sum of digits gives 399004302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399004303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83143 + ... + 87810.

It is an arithmetic number, because the mean of its divisors is an integer number (50004045).

Almost surely, 2^399004302 is an apocalyptic number.

399004302 is an abundant number, since it is smaller than the sum of its proper divisors (401060418).

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

399004302 is a wasteful number, since it uses less digits than its factorization.

399004302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171347.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 399004302 is about 19975.0920398380. The cubic root of 399004302 is about 736.1944279481.

The spelling of 399004302 in words is "three hundred ninety-nine million, four thousand, three hundred two".