423131398 has 16 divisors (see below), whose sum is σ = 659890224. Its totient is φ = 203322240.

The previous prime is 423131381. The next prime is 423131417. The reversal of 423131398 is 893131324.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33015 + ... + 44002.

It is an arithmetic number, because the mean of its divisors is an integer number (41243139).

Almost surely, 2^423131398 is an apocalyptic number.

423131398 is a deficient number, since it is larger than the sum of its proper divisors (236758826).

423131398 is a wasteful number, since it uses less digits than its factorization.

423131398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77127.

The product of its digits is 15552, while the sum is 34.

The square root of 423131398 is about 20570.1579478622. The cubic root of 423131398 is about 750.7437942644.

The spelling of 423131398 in words is "four hundred twenty-three million, one hundred thirty-one thousand, three hundred ninety-eight".