264439 has 8 divisors (see below), whose sum is σ = 310688. Its totient is φ = 220320.

The previous prime is 264437. The next prime is 264443. The reversal of 264439 is 934462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 264439 - 2¹ = 264437 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 252 + ... + 769.

It is an arithmetic number, because the mean of its divisors is an integer number (38836).

2²⁶⁴⁴³⁹ is an apocalyptic number.

264439 is a deficient number, since it is larger than the sum of its proper divisors (46249).

264439 is a wasteful number, since it uses less digits than its factorization.

264439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065.

The product of its digits is 5184, while the sum is 28.

The square root of 264439 is about 514.2363269937. The cubic root of 264439 is about 64.1862251804.

It can be divided in two parts, 264 and 439, that added together give a triangular number (703 = T₃₇).

The spelling of 264439 in words is "two hundred sixty-four thousand, four hundred thirty-nine".