26242815 has 16 divisors (see below), whose sum is σ = 44458848. Its totient is φ = 13172736.

The previous prime is 26242757. The next prime is 26242817. The reversal of 26242815 is 51824262.

It is not a de Polignac number, because 26242815 - 2⁷ = 26242687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26242817) 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, 51202 + ... + 51711.

It is an arithmetic number, because the mean of its divisors is an integer number (2778678).

Almost surely, 2^26242815 is an apocalyptic number.

26242815 is a deficient number, since it is larger than the sum of its proper divisors (18216033).

26242815 is a wasteful number, since it uses less digits than its factorization.

26242815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102938.

The product of its digits is 7680, while the sum is 30.

The square root of 26242815 is about 5122.7741507898. The cubic root of 26242815 is about 297.1689795579.

The spelling of 26242815 in words is "twenty-six million, two hundred forty-two thousand, eight hundred fifteen".