264781632 has 28 divisors (see below), whose sum is σ = 700568576. Its totient is φ = 88260480.

The previous prime is 264781631. The next prime is 264781651. The reversal of 264781632 is 236187462.

It is a happy number.

264781632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264781631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689344 + ... + 689727.

Almost surely, 2^264781632 is an apocalyptic number.

It is an amenable number.

264781632 is an abundant number, since it is smaller than the sum of its proper divisors (435786944).

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

264781632 is a wasteful number, since it uses less digits than its factorization.

264781632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379086 (or 1379076 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 264781632 is about 16272.1120940092. The cubic root of 264781632 is about 642.1393511618.

The spelling of 264781632 in words is "two hundred sixty-four million, seven hundred eighty-one thousand, six hundred thirty-two".