231438498 has 16 divisors (see below), whose sum is σ = 477808896. Its totient is φ = 74657520.

The previous prime is 231438491. The next prime is 231438509. The reversal of 231438498 is 894834132.

It is not an unprimeable number, because it can be changed into a prime (231438491) 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, 621961 + ... + 622332.

It is an arithmetic number, because the mean of its divisors is an integer number (29863056).

Almost surely, 2^231438498 is an apocalyptic number.

231438498 is an abundant number, since it is smaller than the sum of its proper divisors (246370398).

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

231438498 is a wasteful number, since it uses less digits than its factorization.

231438498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244329.

The product of its digits is 165888, while the sum is 42.

The square root of 231438498 is about 15213.1028393290. The cubic root of 231438498 is about 613.9672428209.

The spelling of 231438498 in words is "two hundred thirty-one million, four hundred thirty-eight thousand, four hundred ninety-eight".