231742326 has 16 divisors (see below), whose sum is σ = 463676400. Its totient is φ = 77215488.

The previous prime is 231742309. The next prime is 231742331. The reversal of 231742326 is 623247132.

It is a junction number, because it is equal to n+sod(n) for n = 231742293 and 231742302.

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, 11310 + ... + 24318.

It is an arithmetic number, because the mean of its divisors is an integer number (28979775).

Almost surely, 2^231742326 is an apocalyptic number.

231742326 is an abundant number, since it is smaller than the sum of its proper divisors (231934074).

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

231742326 is a wasteful number, since it uses less digits than its factorization.

231742326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15983.

The product of its digits is 12096, while the sum is 30.

The square root of 231742326 is about 15223.0852983224. The cubic root of 231742326 is about 614.2357934605.

Adding to 231742326 its reverse (623247132), we get a palindrome (854989458).

The spelling of 231742326 in words is "two hundred thirty-one million, seven hundred forty-two thousand, three hundred twenty-six".