26040231 has 32 divisors (see below), whose sum is σ = 45619200. Its totient is φ = 14364000.

The previous prime is 26040227. The next prime is 26040233. The reversal of 26040231 is 13204062.

It is a happy number.

26040231 is a `hidden beast` number, since 260 + 402 + 3 + 1 = 666.

It is not a de Polignac number, because 26040231 - 2² = 26040227 is a prime.

It is a super-2 number, since 2×26040231² = 1356187261066722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26040233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3106 + ... + 7856.

It is an arithmetic number, because the mean of its divisors is an integer number (1425600).

Almost surely, 2^26040231 is an apocalyptic number.

26040231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

26040231 is a deficient number, since it is larger than the sum of its proper divisors (19578969).

26040231 is a wasteful number, since it uses less digits than its factorization.

26040231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4796 (or 4790 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 26040231 is about 5102.9629628286. The cubic root of 26040231 is about 296.4023283267.

Adding to 26040231 its reverse (13204062), we get a palindrome (39244293).

The spelling of 26040231 in words is "twenty-six million, forty thousand, two hundred thirty-one".