399044901 has 8 divisors (see below), whose sum is σ = 550406880. Its totient is φ = 256856432.

The previous prime is 399044873. The next prime is 399044941. The reversal of 399044901 is 109440993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 399044901 - 2⁵ = 399044869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 399044901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399044941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2293275 + ... + 2293448.

It is an arithmetic number, because the mean of its divisors is an integer number (68800860).

Almost surely, 2^399044901 is an apocalyptic number.

It is an amenable number.

399044901 is a deficient number, since it is larger than the sum of its proper divisors (151361979).

399044901 is a wasteful number, since it uses less digits than its factorization.

399044901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4586755.

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

The square root of 399044901 is about 19976.1082546126. The cubic root of 399044901 is about 736.2193965543.

The spelling of 399044901 in words is "three hundred ninety-nine million, forty-four thousand, nine hundred one".