240431 has 4 divisors (see below), whose sum is σ = 254592. Its totient is φ = 226272.

The previous prime is 240421. The next prime is 240433. The reversal of 240431 is 134042.

240431 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134042 = 2 ⋅67021.

It is a cyclic number.

It is not a de Polignac number, because 240431 - 2¹⁴ = 224047 is a prime.

It is a super-2 number, since 2×240431² = 115614131522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240433) 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, 7055 + ... + 7088.

It is an arithmetic number, because the mean of its divisors is an integer number (63648).

2²⁴⁰⁴³¹ is an apocalyptic number.

240431 is a deficient number, since it is larger than the sum of its proper divisors (14161).

240431 is a wasteful number, since it uses less digits than its factorization.

240431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14160.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 240431 is about 490.3376387756. The cubic root of 240431 is about 62.1818283507.

Adding to 240431 its reverse (134042), we get a palindrome (374473).

The spelling of 240431 in words is "two hundred forty thousand, four hundred thirty-one".