399332003776 has 28 divisors (see below), whose sum is σ = 793514529808. Its totient is φ = 199391334912.

The previous prime is 399332003747. The next prime is 399332003779. The reversal of 399332003776 is 677300233993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399332003779) 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, 4244781 + ... + 4337836.

It is an arithmetic number, because the mean of its divisors is an integer number (28339804636).

Almost surely, 2^399332003776 is an apocalyptic number.

It is an amenable number.

399332003776 is a deficient number, since it is larger than the sum of its proper divisors (394182526032).

399332003776 is an equidigital number, since it uses as much as digits as its factorization.

399332003776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8583356 (or 8583346 counting only the distinct ones).

The product of its (nonzero) digits is 3857868, while the sum is 52.

The spelling of 399332003776 in words is "three hundred ninety-nine billion, three hundred thirty-two million, three thousand, seven hundred seventy-six".