399616932 has 48 divisors (see below), whose sum is σ = 1095458112. Its totient is φ = 111780480.

The previous prime is 399616913. The next prime is 399616933. The reversal of 399616932 is 239616993.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (399616933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114723 + ... + 118154.

It is an arithmetic number, because the mean of its divisors is an integer number (22822044).

Almost surely, 2^399616932 is an apocalyptic number.

It is an amenable number.

399616932 is an abundant number, since it is smaller than the sum of its proper divisors (695841180).

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

399616932 is a wasteful number, since it uses less digits than its factorization.

399616932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232908 (or 232906 counting only the distinct ones).

The product of its digits is 472392, while the sum is 48.

The square root of 399616932 is about 19990.4210060719. The cubic root of 399616932 is about 736.5710188419.

The spelling of 399616932 in words is "three hundred ninety-nine million, six hundred sixteen thousand, nine hundred thirty-two".