26240564 has 24 divisors (see below), whose sum is σ = 52590720. Its totient is φ = 11222496.

The previous prime is 26240549. The next prime is 26240567. The reversal of 26240564 is 46504262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26240567) 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, 22934 + ... + 24050.

It is an arithmetic number, because the mean of its divisors is an integer number (2191280).

Almost surely, 2^26240564 is an apocalyptic number.

It is an amenable number.

26240564 is an abundant number, since it is smaller than the sum of its proper divisors (26350156).

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

26240564 is a wasteful number, since it uses less digits than its factorization.

26240564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967 (or 1965 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 26240564 is about 5122.5544409015. The cubic root of 26240564 is about 297.1604826735.

The spelling of 26240564 in words is "twenty-six million, two hundred forty thousand, five hundred sixty-four".