399275068 has 12 divisors (see below), whose sum is σ = 698893272. Its totient is φ = 199591280.

The previous prime is 399275057. The next prime is 399275099. The reversal of 399275068 is 860572993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14271 + ... + 31657.

It is an arithmetic number, because the mean of its divisors is an integer number (58241106).

Almost surely, 2^399275068 is an apocalyptic number.

It is an amenable number.

399275068 is a deficient number, since it is larger than the sum of its proper divisors (299618204).

399275068 is a wasteful number, since it uses less digits than its factorization.

399275068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23132 (or 23130 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 399275068 is about 19981.8684812007. The cubic root of 399275068 is about 736.3609185066.

The spelling of 399275068 in words is "three hundred ninety-nine million, two hundred seventy-five thousand, sixty-eight".