399982232 has 16 divisors (see below), whose sum is σ = 807656640. Its totient is φ = 184607136.

The previous prime is 399982217. The next prime is 399982237. The reversal of 399982232 is 232289993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399982237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1922888 + ... + 1923095.

It is an arithmetic number, because the mean of its divisors is an integer number (50478540).

Almost surely, 2^399982232 is an apocalyptic number.

It is an amenable number.

399982232 is an abundant number, since it is smaller than the sum of its proper divisors (407674408).

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

399982232 is a wasteful number, since it uses less digits than its factorization.

399982232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846002 (or 3845998 counting only the distinct ones).

The product of its digits is 419904, while the sum is 47.

The square root of 399982232 is about 19999.5557950670. Note that the first 3 decimals coincide. The cubic root of 399982232 is about 736.7953899213.

The spelling of 399982232 in words is "three hundred ninety-nine million, nine hundred eighty-two thousand, two hundred thirty-two".