399350357 has 16 divisors (see below), whose sum is σ = 480018432. Its totient is φ = 324822960.

The previous prime is 399350333. The next prime is 399350359. The reversal of 399350357 is 753053993.

It is not a de Polignac number, because 399350357 - 2²⁶ = 332241493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399350359) 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, 10682 + ... + 30212.

It is an arithmetic number, because the mean of its divisors is an integer number (30001152).

Almost surely, 2^399350357 is an apocalyptic number.

It is an amenable number.

399350357 is a deficient number, since it is larger than the sum of its proper divisors (80668075).

399350357 is a wasteful number, since it uses less digits than its factorization.

399350357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19688.

The product of its (nonzero) digits is 382725, while the sum is 44.

The square root of 399350357 is about 19983.7523253267. The cubic root of 399350357 is about 736.4071993769.

The spelling of 399350357 in words is "three hundred ninety-nine million, three hundred fifty thousand, three hundred fifty-seven".