399056894944 has 24 divisors (see below), whose sum is σ = 785875160448. Its totient is φ = 199469552640.

The previous prime is 399056894941. The next prime is 399056894969. The reversal of 399056894944 is 449498650993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399056894941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1730257 + ... + 1947280.

It is an arithmetic number, because the mean of its divisors is an integer number (32744798352).

Almost surely, 2^399056894944 is an apocalyptic number.

It is an amenable number.

399056894944 is a deficient number, since it is larger than the sum of its proper divisors (386818265504).

399056894944 is a wasteful number, since it uses less digits than its factorization.

399056894944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680938 (or 3680930 counting only the distinct ones).

The product of its (nonzero) digits is 302330880, while the sum is 70.

The spelling of 399056894944 in words is "three hundred ninety-nine billion, fifty-six million, eight hundred ninety-four thousand, nine hundred forty-four".