399043027212 has 48 divisors (see below), whose sum is σ = 932070986112. Its totient is φ = 132875775360.

The previous prime is 399043027211. The next prime is 399043027241. The reversal of 399043027212 is 212720340993.

It is not an unprimeable number, because it can be changed into a prime (399043027211) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 60798643 + ... + 60805205.

It is an arithmetic number, because the mean of its divisors is an integer number (19418145544).

Almost surely, 2^399043027212 is an apocalyptic number.

It is an amenable number.

399043027212 is an abundant number, since it is smaller than the sum of its proper divisors (533027958900).

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

399043027212 is a wasteful number, since it uses less digits than its factorization.

399043027212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11078 (or 11076 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 399043027212 in words is "three hundred ninety-nine billion, forty-three million, twenty-seven thousand, two hundred twelve".