26340565 has 16 divisors (see below), whose sum is σ = 33592320. Its totient is φ = 19759360.

The previous prime is 26340551. The next prime is 26340569. The reversal of 26340565 is 56504362.

It is not a de Polignac number, because 26340565 - 2⁷ = 26340437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26340569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36276 + ... + 36994.

It is an arithmetic number, because the mean of its divisors is an integer number (2099520).

Almost surely, 2^26340565 is an apocalyptic number.

It is an amenable number.

26340565 is a deficient number, since it is larger than the sum of its proper divisors (7251755).

26340565 is a wasteful number, since it uses less digits than its factorization.

26340565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 26340565 is about 5132.3060119210. The cubic root of 26340565 is about 297.5374902734.

The spelling of 26340565 in words is "twenty-six million, three hundred forty thousand, five hundred sixty-five".