264240263 has 8 divisors (see below), whose sum is σ = 303913632. Its totient is φ = 225048096.

The previous prime is 264240253. The next prime is 264240269. The reversal of 264240263 is 362042462.

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

It is not a de Polignac number, because 264240263 - 2⁸ = 264240007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264240269) 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, 119120 + ... + 121317.

It is an arithmetic number, because the mean of its divisors is an integer number (37989204).

Almost surely, 2^264240263 is an apocalyptic number.

264240263 is a deficient number, since it is larger than the sum of its proper divisors (39673369).

264240263 is a wasteful number, since it uses less digits than its factorization.

264240263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240601.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 264240263 is about 16255.4687105601. The cubic root of 264240263 is about 641.7014160376.

The spelling of 264240263 in words is "two hundred sixty-four million, two hundred forty thousand, two hundred sixty-three".