26242831 has 4 divisors (see below), whose sum is σ = 26303872. Its totient is φ = 26181792.

The previous prime is 26242817. The next prime is 26242847. The reversal of 26242831 is 13824262.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13824262 = 2 ⋅6912131.

It is a cyclic number.

It is not a de Polignac number, because 26242831 - 2⁹ = 26242319 is a prime.

It is a super-2 number, since 2×26242831² = 1377372357789122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26242831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26240831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29871 + ... + 30736.

It is an arithmetic number, because the mean of its divisors is an integer number (6575968).

Almost surely, 2^26242831 is an apocalyptic number.

26242831 is a deficient number, since it is larger than the sum of its proper divisors (61041).

26242831 is an equidigital number, since it uses as much as digits as its factorization.

26242831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61040.

The product of its digits is 4608, while the sum is 28.

The square root of 26242831 is about 5122.7757124434. The cubic root of 26242831 is about 297.1690399517.

The spelling of 26242831 in words is "twenty-six million, two hundred forty-two thousand, eight hundred thirty-one".