233242431 has 16 divisors (see below), whose sum is σ = 332551008. Its totient is φ = 144896000.

The previous prime is 233242421. The next prime is 233242433. The reversal of 233242431 is 134242332.

It is a cyclic number.

It is not a de Polignac number, because 233242431 - 2¹⁴ = 233226047 is a prime.

It is a super-2 number, since 2×233242431² = 108804063237579522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233242433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17490 + ... + 27791.

It is an arithmetic number, because the mean of its divisors is an integer number (20784438).

Almost surely, 2^233242431 is an apocalyptic number.

233242431 is a deficient number, since it is larger than the sum of its proper divisors (99308577).

233242431 is a wasteful number, since it uses less digits than its factorization.

233242431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45402.

The product of its digits is 3456, while the sum is 24.

The square root of 233242431 is about 15272.2765493557. The cubic root of 233242431 is about 615.5582926887.

Adding to 233242431 its reverse (134242332), we get a palindrome (367484763).

Subtracting from 233242431 its reverse (134242332), we obtain a palindrome (99000099).

The spelling of 233242431 in words is "two hundred thirty-three million, two hundred forty-two thousand, four hundred thirty-one".