26564224 has 64 divisors (see below), whose sum is σ = 55814400. Its totient is φ = 12579840.

The previous prime is 26564207. The next prime is 26564231. The reversal of 26564224 is 42246562.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336217 + ... + 336295.

It is an arithmetic number, because the mean of its divisors is an integer number (872100).

Almost surely, 2^26564224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26564224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27907200).

26564224 is an abundant number, since it is smaller than the sum of its proper divisors (29250176).

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

26564224 is an equidigital number, since it uses as much as digits as its factorization.

26564224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 189 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 26564224 is about 5154.0492818754. The cubic root of 26564224 is about 298.3772529481.

The spelling of 26564224 in words is "twenty-six million, five hundred sixty-four thousand, two hundred twenty-four".