399102112 has 12 divisors (see below), whose sum is σ = 785732346. Its totient is φ = 199551040.

The previous prime is 399102079. The next prime is 399102113. The reversal of 399102112 is 211201993.

It can be written as a sum of positive squares in only one way, i.e., 340181136 + 58920976 = 18444^2 + 7676^2 .

It is not an unprimeable number, because it can be changed into a prime (399102113) by changing a digit.

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 as a sum of consecutive naturals, namely, 6235939 + ... + 6236002.

Almost surely, 2^399102112 is an apocalyptic number.

399102112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

399102112 is a deficient number, since it is larger than the sum of its proper divisors (386630234).

399102112 is a wasteful number, since it uses less digits than its factorization.

399102112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12471951 (or 12471943 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 399102112 is about 19977.5401889222. The cubic root of 399102112 is about 736.2545787565.

The spelling of 399102112 in words is "three hundred ninety-nine million, one hundred two thousand, one hundred twelve".