264340765 has 16 divisors (see below), whose sum is σ = 350845488. Its totient is φ = 189927936.

The previous prime is 264340729. The next prime is 264340801. The reversal of 264340765 is 567043462.

264340765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (264340729) and next prime (264340801).

It can be written as a sum of positive squares in 8 ways, for example, as 5098564 + 259242201 = 2258^2 + 16101^2 .

It is a cyclic number.

It is not a de Polignac number, because 264340765 - 2¹¹ = 264338717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52552 + ... + 57361.

It is an arithmetic number, because the mean of its divisors is an integer number (21927843).

Almost surely, 2^264340765 is an apocalyptic number.

It is an amenable number.

264340765 is a deficient number, since it is larger than the sum of its proper divisors (86504723).

264340765 is a wasteful number, since it uses less digits than its factorization.

264340765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109968.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 264340765 is about 16258.5597455617. The cubic root of 264340765 is about 641.7827613258.

The spelling of 264340765 in words is "two hundred sixty-four million, three hundred forty thousand, seven hundred sixty-five".