264431 has 4 divisors (see below), whose sum is σ = 275952. Its totient is φ = 252912.

The previous prime is 264403. The next prime is 264437. The reversal of 264431 is 134462.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134462 = 2 ⋅67231.

It is a cyclic number.

It is not a de Polignac number, because 264431 - 2¹⁸ = 2287 is a prime.

It is a super-2 number, since 2×264431² = 139847507522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264437) 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, 5726 + ... + 5771.

It is an arithmetic number, because the mean of its divisors is an integer number (68988).

2²⁶⁴⁴³¹ is an apocalyptic number.

264431 is a deficient number, since it is larger than the sum of its proper divisors (11521).

264431 is a wasteful number, since it uses less digits than its factorization.

264431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11520.

The product of its digits is 576, while the sum is 20.

The square root of 264431 is about 514.2285484101. The cubic root of 264431 is about 64.1855779045.

Adding to 264431 its reverse (134462), we get a palindrome (398893).

The spelling of 264431 in words is "two hundred sixty-four thousand, four hundred thirty-one".