64240528 has 20 divisors (see below), whose sum is σ = 135781488. Its totient is φ = 29200160.

The previous prime is 64240513. The next prime is 64240529. The reversal of 64240528 is 82504246.

64240528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 64240528.

It is not an unprimeable number, because it can be changed into a prime (64240529) 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 3 ways as a sum of consecutive naturals, for example, 182326 + ... + 182677.

Almost surely, 2^64240528 is an apocalyptic number.

It is an amenable number.

64240528 is an abundant number, since it is smaller than the sum of its proper divisors (71540960).

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

64240528 is a wasteful number, since it uses less digits than its factorization.

64240528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365022 (or 365016 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 64240528 is about 8015.0189020364. The cubic root of 64240528 is about 400.5004735544.

The spelling of 64240528 in words is "sixty-four million, two hundred forty thousand, five hundred twenty-eight".