399038601 has 16 divisors (see below), whose sum is σ = 585172224. Its totient is φ = 240336384.

The previous prime is 399038597. The next prime is 399038617. The reversal of 399038601 is 106830993.

It is not a de Polignac number, because 399038601 - 2² = 399038597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 399038601.

It is not an unprimeable number, because it can be changed into a prime (399038641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107016 + ... + 110681.

It is an arithmetic number, because the mean of its divisors is an integer number (36573264).

Almost surely, 2^399038601 is an apocalyptic number.

It is an amenable number.

399038601 is a deficient number, since it is larger than the sum of its proper divisors (186133623).

399038601 is a wasteful number, since it uses less digits than its factorization.

399038601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217760.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 399038601 is about 19975.9505656176. The cubic root of 399038601 is about 736.2155221310.

The spelling of 399038601 in words is "three hundred ninety-nine million, thirty-eight thousand, six hundred one".