26604261 has 16 divisors (see below), whose sum is σ = 41128320. Its totient is φ = 16964640.

The previous prime is 26604247. The next prime is 26604283. The reversal of 26604261 is 16240662.

It is a happy number.

It is not a de Polignac number, because 26604261 - 2¹³ = 26596069 is a prime.

It is a super-2 number, since 2×26604261² = 1415573406712242, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26604211) 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, 20800 + ... + 22041.

It is an arithmetic number, because the mean of its divisors is an integer number (2570520).

Almost surely, 2^26604261 is an apocalyptic number.

It is an amenable number.

26604261 is a deficient number, since it is larger than the sum of its proper divisors (14524059).

26604261 is a wasteful number, since it uses less digits than its factorization.

26604261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42873 (or 42867 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 26604261 is about 5157.9318529814. The cubic root of 26604261 is about 298.5270801926.

The spelling of 26604261 in words is "twenty-six million, six hundred four thousand, two hundred sixty-one".