398799312 has 40 divisors (see below), whose sum is σ = 1032850560. Its totient is φ = 132595200.

The previous prime is 398799307. The next prime is 398799319. The reversal of 398799312 is 213997893.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398799319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8889 + ... + 29607.

It is an arithmetic number, because the mean of its divisors is an integer number (25821264).

Almost surely, 2^398799312 is an apocalyptic number.

It is an amenable number.

398799312 is an abundant number, since it is smaller than the sum of its proper divisors (634051248).

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

398799312 is a wasteful number, since it uses less digits than its factorization.

398799312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21131 (or 21125 counting only the distinct ones).

The product of its digits is 734832, while the sum is 51.

The square root of 398799312 is about 19969.9602403210. The cubic root of 398799312 is about 736.0683321087.

The spelling of 398799312 in words is "three hundred ninety-eight million, seven hundred ninety-nine thousand, three hundred twelve".