399704028352 has 28 divisors (see below), whose sum is σ = 793183809616. Its totient is φ = 199846690560.

The previous prime is 399704028319. The next prime is 399704028371. The reversal of 399704028352 is 253820407993.

It is a self number, because there is not a number n which added to its sum of digits gives 399704028352.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3607702 + ... + 3716842.

Almost surely, 2^399704028352 is an apocalyptic number.

399704028352 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

399704028352 is a deficient number, since it is larger than the sum of its proper divisors (393479781264).

399704028352 is a wasteful number, since it uses less digits than its factorization.

399704028352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166376 (or 166366 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 399704028352 in words is "three hundred ninety-nine billion, seven hundred four million, twenty-eight thousand, three hundred fifty-two".