399223312412 has 12 divisors (see below), whose sum is σ = 698672966376. Its totient is φ = 199602464880.

The previous prime is 399223312357. The next prime is 399223312421. The reversal of 399223312412 is 214213322993.

It is a self number, because there is not a number n which added to its sum of digits gives 399223312412.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 2199638 + ... + 2374205.

It is an arithmetic number, because the mean of its divisors is an integer number (58222747198).

Almost surely, 2^399223312412 is an apocalyptic number.

It is an amenable number.

399223312412 is a deficient number, since it is larger than the sum of its proper divisors (299449653964).

399223312412 is a wasteful number, since it uses less digits than its factorization.

399223312412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4595668 (or 4595666 counting only the distinct ones).

The product of its digits is 139968, while the sum is 41.

The spelling of 399223312412 in words is "three hundred ninety-nine billion, two hundred twenty-three million, three hundred twelve thousand, four hundred twelve".