399043076844 has 24 divisors (see below), whose sum is σ = 934414045488. Its totient is φ = 132540997120.

The previous prime is 399043076797. The next prime is 399043076863. The reversal of 399043076844 is 448670340993.

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 7 ways as a sum of consecutive naturals, for example, 59166717 + ... + 59173460.

It is an arithmetic number, because the mean of its divisors is an integer number (38933918562).

Almost surely, 2^399043076844 is an apocalyptic number.

It is an amenable number.

399043076844 is an abundant number, since it is smaller than the sum of its proper divisors (535370968644).

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

399043076844 is a wasteful number, since it uses less digits than its factorization.

399043076844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118340465 (or 118340463 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 57.

The spelling of 399043076844 in words is "three hundred ninety-nine billion, forty-three million, seventy-six thousand, eight hundred forty-four".