264340 has 12 divisors (see below), whose sum is σ = 555156. Its totient is φ = 105728.

The previous prime is 264331. The next prime is 264343. The reversal of 264340 is 43462.

It can be written as a sum of positive squares in 2 ways, for example, as 101124 + 163216 = 318^2 + 404^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6589 + ... + 6628.

It is an arithmetic number, because the mean of its divisors is an integer number (46263).

2²⁶⁴³⁴⁰ is an apocalyptic number.

264340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264340 is an abundant number, since it is smaller than the sum of its proper divisors (290816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

264340 is a wasteful number, since it uses less digits than its factorization.

264340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13226 (or 13224 counting only the distinct ones).

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

The square root of 264340 is about 514.1400587389. The cubic root of 264340 is about 64.1782142220.

The spelling of 264340 in words is "two hundred sixty-four thousand, three hundred forty".