26223231 has 16 divisors (see below), whose sum is σ = 37927008. Its totient is φ = 16051200.

The previous prime is 26223203. The next prime is 26223247. The reversal of 26223231 is 13232262.

It is not a de Polignac number, because 26223231 - 2⁹ = 26222719 is a prime.

It is a super-2 number, since 2×26223231² = 1375315688158722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26223198 and 26223207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26223731) 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, 4180 + ... + 8361.

It is an arithmetic number, because the mean of its divisors is an integer number (2370438).

Almost surely, 2^26223231 is an apocalyptic number.

26223231 is a deficient number, since it is larger than the sum of its proper divisors (11703777).

26223231 is a wasteful number, since it uses less digits than its factorization.

26223231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12602.

The product of its digits is 864, while the sum is 21.

The square root of 26223231 is about 5120.8623297253. The cubic root of 26223231 is about 297.0950392485.

Adding to 26223231 its reverse (13232262), we get a palindrome (39455493).

The spelling of 26223231 in words is "twenty-six million, two hundred twenty-three thousand, two hundred thirty-one".