399246903312 has 40 divisors (see below), whose sum is σ = 1031449322304. Its totient is φ = 133074367104.

The previous prime is 399246903283. The next prime is 399246903323. The reversal of 399246903312 is 213309642993.

It is a happy number.

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, 595138 + ... + 1073630.

Almost surely, 2^399246903312 is an apocalyptic number.

It is an amenable number.

399246903312 is an abundant number, since it is smaller than the sum of its proper divisors (632202418992).

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

399246903312 is a wasteful number, since it uses less digits than its factorization.

399246903312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495887 (or 495881 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 51.

The spelling of 399246903312 in words is "three hundred ninety-nine billion, two hundred forty-six million, nine hundred three thousand, three hundred twelve".