26430331 has 2 divisors, whose sum is σ = 26430332. Its totient is φ = 26430330.

The previous prime is 26430317. The next prime is 26430343. The reversal of 26430331 is 13303462.

26430331 is nontrivially palindromic in base 13.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26430331 - 2⁷ = 26430203 is a prime.

It is a super-2 number, since 2×26430331² = 1397124793539122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26430301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13215165 + 13215166.

It is an arithmetic number, because the mean of its divisors is an integer number (13215166).

Almost surely, 2^26430331 is an apocalyptic number.

26430331 is a deficient number, since it is larger than the sum of its proper divisors (1).

26430331 is an equidigital number, since it uses as much as digits as its factorization.

26430331 is an odious number, because the sum of its binary digits is odd.

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

The square root of 26430331 is about 5141.0437656180. The cubic root of 26430331 is about 297.8750996782.

Adding to 26430331 its reverse (13303462), we get a palindrome (39733793).

The spelling of 26430331 in words is "twenty-six million, four hundred thirty thousand, three hundred thirty-one".