394668152412 has 48 divisors (see below), whose sum is σ = 933953529600. Its totient is φ = 129690529920.

The previous prime is 394668152287. The next prime is 394668152449. The reversal of 394668152412 is 214251866493.

It is a happy number.

It is a super-2 number, since 2×394668152412² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13497264 + ... + 13526472.

It is an arithmetic number, because the mean of its divisors is an integer number (19457365200).

Almost surely, 2^394668152412 is an apocalyptic number.

It is an amenable number.

394668152412 is an abundant number, since it is smaller than the sum of its proper divisors (539285377188).

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

394668152412 is a wasteful number, since it uses less digits than its factorization.

394668152412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45146 (or 45144 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The spelling of 394668152412 in words is "three hundred ninety-four billion, six hundred sixty-eight million, one hundred fifty-two thousand, four hundred twelve".