399003268 has 12 divisors (see below), whose sum is σ = 735006160. Its totient is φ = 189001512.

The previous prime is 399003259. The next prime is 399003281. The reversal of 399003268 is 862300993.

It is a self number, because there is not a number n which added to its sum of digits gives 399003268.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2624946 + ... + 2625097.

Almost surely, 2^399003268 is an apocalyptic number.

399003268 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

399003268 is a deficient number, since it is larger than the sum of its proper divisors (336002892).

399003268 is a wasteful number, since it uses less digits than its factorization.

399003268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5250066 (or 5250064 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 399003268 is about 19975.0661575876. The cubic root of 399003268 is about 736.1937920104.

The spelling of 399003268 in words is "three hundred ninety-nine million, three thousand, two hundred sixty-eight".