240031423 has 4 divisors (see below), whose sum is σ = 240448000. Its totient is φ = 239614848.

The previous prime is 240031403. The next prime is 240031433. The reversal of 240031423 is 324130042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 240031423 - 2⁵ = 240031391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240031423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240031403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207423 + ... + 208576.

It is an arithmetic number, because the mean of its divisors is an integer number (60112000).

Almost surely, 2^240031423 is an apocalyptic number.

240031423 is a deficient number, since it is larger than the sum of its proper divisors (416577).

240031423 is an equidigital number, since it uses as much as digits as its factorization.

240031423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416576.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 240031423 is about 15492.9475245997. The cubic root of 240031423 is about 621.4736218314.

Adding to 240031423 its reverse (324130042), we get a palindrome (564161465).

The spelling of 240031423 in words is "two hundred forty million, thirty-one thousand, four hundred twenty-three".