399354416 has 30 divisors (see below), whose sum is σ = 792220500. Its totient is φ = 195019104.

The previous prime is 399354409. The next prime is 399354427. The reversal of 399354416 is 614453993.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22835 + ... + 36333.

It is an arithmetic number, because the mean of its divisors is an integer number (26407350).

Almost surely, 2^399354416 is an apocalyptic number.

It is an amenable number.

399354416 is a deficient number, since it is larger than the sum of its proper divisors (392866084).

399354416 is a wasteful number, since it uses less digits than its factorization.

399354416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13593 (or 13544 counting only the distinct ones).

The product of its digits is 349920, while the sum is 44.

The square root of 399354416 is about 19983.8538825723. The cubic root of 399354416 is about 736.4096943179.

The spelling of 399354416 in words is "three hundred ninety-nine million, three hundred fifty-four thousand, four hundred sixteen".