399882012 has 24 divisors (see below), whose sum is σ = 935396112. Its totient is φ = 132960000.

The previous prime is 399881987. The next prime is 399882053. The reversal of 399882012 is 210288993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36739 + ... + 46362.

It is an arithmetic number, because the mean of its divisors is an integer number (38974838).

Almost surely, 2^399882012 is an apocalyptic number.

It is an amenable number.

399882012 is an abundant number, since it is smaller than the sum of its proper divisors (535514100).

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

399882012 is a wasteful number, since it uses less digits than its factorization.

399882012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83509 (or 83507 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 399882012 is about 19997.0500824497. The cubic root of 399882012 is about 736.7338473524.

The spelling of 399882012 in words is "three hundred ninety-nine million, eight hundred eighty-two thousand, twelve".