26340331 has 2 divisors, whose sum is σ = 26340332. Its totient is φ = 26340330.

The previous prime is 26340329. The next prime is 26340341. The reversal of 26340331 is 13304362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26340331 - 2¹ = 26340329 is a prime.

It is a super-2 number, since 2×26340331² = 1387626074379122, which contains 22 as substring.

Together with 26340329, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_1644403 and since 26340331 and 1644403 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (26340341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13170165 + 13170166.

It is an arithmetic number, because the mean of its divisors is an integer number (13170166).

Almost surely, 2^26340331 is an apocalyptic number.

26340331 is a deficient number, since it is larger than the sum of its proper divisors (1).

26340331 is an equidigital number, since it uses as much as digits as its factorization.

26340331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 26340331 is about 5132.2832151003. The cubic root of 26340331 is about 297.5366091991.

Adding to 26340331 its reverse (13304362), we get a palindrome (39644693).

The spelling of 26340331 in words is "twenty-six million, three hundred forty thousand, three hundred thirty-one".