398894223238 has 16 divisors (see below), whose sum is σ = 719809125120. Its totient is φ = 161957052936.

The previous prime is 398894223227. The next prime is 398894223253. The reversal of 398894223238 is 832322498893.

It is a happy number.

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, 749800906 + ... + 749801437.

It is an arithmetic number, because the mean of its divisors is an integer number (44988070320).

Almost surely, 2^398894223238 is an apocalyptic number.

398894223238 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

398894223238 is a deficient number, since it is larger than the sum of its proper divisors (320914901882).

398894223238 is a wasteful number, since it uses less digits than its factorization.

398894223238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499602371.

The product of its digits is 35831808, while the sum is 61.

The spelling of 398894223238 in words is "three hundred ninety-eight billion, eight hundred ninety-four million, two hundred twenty-three thousand, two hundred thirty-eight".