26242393 has 4 divisors (see below), whose sum is σ = 26409700. Its totient is φ = 26075088.

The previous prime is 26242343. The next prime is 26242397. The reversal of 26242393 is 39324262.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3087049 + 23155344 = 1757^2 + 4812^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26242393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26242397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83418 + ... + 83731.

It is an arithmetic number, because the mean of its divisors is an integer number (6602425).

Almost surely, 2^26242393 is an apocalyptic number.

It is an amenable number.

26242393 is a deficient number, since it is larger than the sum of its proper divisors (167307).

26242393 is a wasteful number, since it uses less digits than its factorization.

26242393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167306.

The product of its digits is 15552, while the sum is 31.

The square root of 26242393 is about 5122.7329620038. The cubic root of 26242393 is about 297.1673866650.

The spelling of 26242393 in words is "twenty-six million, two hundred forty-two thousand, three hundred ninety-three".