26242564 has 24 divisors (see below), whose sum is σ = 47741400. Its totient is φ = 12621728.

The previous prime is 26242561. The next prime is 26242597. The reversal of 26242564 is 46524262.

It can be written as a sum of positive squares in 4 ways, for example, as 1322500 + 24920064 = 1150^2 + 4992^2 .

Its product of digits (23040) is a multiple of the sum of its prime factors (360).

It is not an unprimeable number, because it can be changed into a prime (26242561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97422 + ... + 97690.

It is an arithmetic number, because the mean of its divisors is an integer number (1989225).

Almost surely, 2^26242564 is an apocalyptic number.

It is an amenable number.

26242564 is a deficient number, since it is larger than the sum of its proper divisors (21498836).

26242564 is an equidigital number, since it uses as much as digits as its factorization.

26242564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 300 counting only the distinct ones).

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

The square root of 26242564 is about 5122.7496522864. The cubic root of 26242564 is about 297.1680321284.

The spelling of 26242564 in words is "twenty-six million, two hundred forty-two thousand, five hundred sixty-four".