765642264 has 32 divisors (see below), whose sum is σ = 1922478000. Its totient is φ = 254097792.

The previous prime is 765642263. The next prime is 765642271. The reversal of 765642264 is 462246567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765642263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64159 + ... + 75150.

Almost surely, 2^765642264 is an apocalyptic number.

It is an amenable number.

765642264 is an abundant number, since it is smaller than the sum of its proper divisors (1156835736).

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

765642264 is a wasteful number, since it uses less digits than its factorization.

765642264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139547 (or 139543 counting only the distinct ones).

The product of its digits is 483840, while the sum is 42.

The square root of 765642264 is about 27670.2414879234. The cubic root of 765642264 is about 914.8333035633.

The spelling of 765642264 in words is "seven hundred sixty-five million, six hundred forty-two thousand, two hundred sixty-four".