230440431 has 16 divisors (see below), whose sum is σ = 331400160. Its totient is φ = 141590400.

The previous prime is 230440411. The next prime is 230440433. The reversal of 230440431 is 134044032.

It is not a de Polignac number, because 230440431 - 2⁶ = 230440367 is a prime.

It is a super-2 number, since 2×230440431² = 106205584478931522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 230440398 and 230440407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230440433) 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, 23125 + ... + 31553.

It is an arithmetic number, because the mean of its divisors is an integer number (20712510).

Almost surely, 2^230440431 is an apocalyptic number.

230440431 is a deficient number, since it is larger than the sum of its proper divisors (100959729).

230440431 is a wasteful number, since it uses less digits than its factorization.

230440431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9146.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 230440431 is about 15180.2645233869. The cubic root of 230440431 is about 613.0834033738.

Adding to 230440431 its reverse (134044032), we get a palindrome (364484463).

The spelling of 230440431 in words is "two hundred thirty million, four hundred forty thousand, four hundred thirty-one".