398868368 has 40 divisors (see below), whose sum is σ = 814962720. Its totient is φ = 188593920.

The previous prime is 398868361. The next prime is 398868389. The reversal of 398868368 is 863868893.

It is not an unprimeable number, because it can be changed into a prime (398868361) 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, 259763 + ... + 261293.

It is an arithmetic number, because the mean of its divisors is an integer number (20374068).

Almost surely, 2^398868368 is an apocalyptic number.

398868368 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

398868368 is an abundant number, since it is smaller than the sum of its proper divisors (416094352).

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

398868368 is a wasteful number, since it uses less digits than its factorization.

398868368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415 (or 2409 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 59.

The square root of 398868368 is about 19971.6891624119. The cubic root of 398868368 is about 736.1108154661.

The spelling of 398868368 in words is "three hundred ninety-eight million, eight hundred sixty-eight thousand, three hundred sixty-eight".