399295275 has 24 divisors (see below), whose sum is σ = 660743424. Its totient is φ = 212772000.

The previous prime is 399295243. The next prime is 399295289. The reversal of 399295275 is 572592993.

It is not a de Polignac number, because 399295275 - 2⁵ = 399295243 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155250 + ... + 157800.

It is an arithmetic number, because the mean of its divisors is an integer number (27530976).

Almost surely, 2^399295275 is an apocalyptic number.

399295275 is a deficient number, since it is larger than the sum of its proper divisors (261448149).

399295275 is a wasteful number, since it uses less digits than its factorization.

399295275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4651 (or 4646 counting only the distinct ones).

The product of its digits is 1530900, while the sum is 51.

The square root of 399295275 is about 19982.3741081985. The cubic root of 399295275 is about 736.3733405145.

The spelling of 399295275 in words is "three hundred ninety-nine million, two hundred ninety-five thousand, two hundred seventy-five".