398168512 has 42 divisors (see below), whose sum is σ = 919121352. Its totient is φ = 170642304.

The previous prime is 398168501. The next prime is 398168527. The reversal of 398168512 is 215861893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60348 + ... + 66619.

Almost surely, 2^398168512 is an apocalyptic number.

398168512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

398168512 is an abundant number, since it is smaller than the sum of its proper divisors (520952840).

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

398168512 is a wasteful number, since it uses less digits than its factorization.

398168512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126993 (or 126976 counting only the distinct ones).

The product of its digits is 103680, while the sum is 43.

The square root of 398168512 is about 19954.1602679742. The cubic root of 398168512 is about 735.6800357791.

The spelling of 398168512 in words is "three hundred ninety-eight million, one hundred sixty-eight thousand, five hundred twelve".