399008112 has 20 divisors (see below), whose sum is σ = 1030771080. Its totient is φ = 133002688.

The previous prime is 399008101. The next prime is 399008123. The reversal of 399008112 is 211800993.

It is an interprime number because it is at equal distance from previous prime (399008101) and next prime (399008123).

It is a congruent number.

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, 4156287 + ... + 4156382.

It is an arithmetic number, because the mean of its divisors is an integer number (51538554).

Almost surely, 2^399008112 is an apocalyptic number.

It is an amenable number.

399008112 is an abundant number, since it is smaller than the sum of its proper divisors (631762968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

399008112 is a wasteful number, since it uses less digits than its factorization.

399008112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8312680 (or 8312674 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 399008112 is about 19975.1874083824. The cubic root of 399008112 is about 736.1967711909.

The spelling of 399008112 in words is "three hundred ninety-nine million, eight thousand, one hundred twelve".