22864528 has 20 divisors (see below), whose sum is σ = 45828540. Its totient is φ = 11037824.

The previous prime is 22864493. The next prime is 22864529. The reversal of 22864528 is 82546822.

It can be written as a sum of positive squares in 2 ways, for example, as 14500864 + 8363664 = 3808^2 + 2892^2 .

It is not an unprimeable number, because it can be changed into a prime (22864529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24175 + ... + 25102.

It is an arithmetic number, because the mean of its divisors is an integer number (2291427).

Almost surely, 2^22864528 is an apocalyptic number.

It is an amenable number.

22864528 is an abundant number, since it is smaller than the sum of its proper divisors (22964012).

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

22864528 is a wasteful number, since it uses less digits than its factorization.

22864528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49314 (or 49308 counting only the distinct ones).

The product of its digits is 61440, while the sum is 37.

The square root of 22864528 is about 4781.6867316879. The cubic root of 22864528 is about 283.8272440055.

The spelling of 22864528 in words is "twenty-two million, eight hundred sixty-four thousand, five hundred twenty-eight".