399292063252 has 6 divisors (see below), whose sum is σ = 698761110698. Its totient is φ = 199646031624.

The previous prime is 399292063199. The next prime is 399292063279. The reversal of 399292063252 is 252360292993.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 344200462596 + 55091600656 = 586686^2 + 234716^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 399292063252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49911507903 + ... + 49911507910.

Almost surely, 2^399292063252 is an apocalyptic number.

It is an amenable number.

399292063252 is a deficient number, since it is larger than the sum of its proper divisors (299469047446).

399292063252 is a wasteful number, since it uses less digits than its factorization.

399292063252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99823015817 (or 99823015815 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 52.

The spelling of 399292063252 in words is "three hundred ninety-nine billion, two hundred ninety-two million, sixty-three thousand, two hundred fifty-two".