399301252 has 24 divisors (see below), whose sum is σ = 833325696. Its totient is φ = 163688448.

The previous prime is 399301249. The next prime is 399301271. The reversal of 399301252 is 252103993.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309373 + ... + 310660.

It is an arithmetic number, because the mean of its divisors is an integer number (34721904).

Almost surely, 2^399301252 is an apocalyptic number.

It is an amenable number.

399301252 is an abundant number, since it is smaller than the sum of its proper divisors (434024444).

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

399301252 is a wasteful number, since it uses less digits than its factorization.

399301252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620067 (or 620065 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 399301252 is about 19982.5236644424. The cubic root of 399301252 is about 736.3770147223.

The spelling of 399301252 in words is "three hundred ninety-nine million, three hundred one thousand, two hundred fifty-two".