26331138 has 24 divisors (see below), whose sum is σ = 57988476. Its totient is φ = 8632800.

The previous prime is 26331133. The next prime is 26331157. The reversal of 26331138 is 83113362.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15657849 + 10673289 = 3957^2 + 3267^2 .

It is not an unprimeable number, because it can be changed into a prime (26331133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10893 + ... + 13088.

Almost surely, 2^26331138 is an apocalyptic number.

26331138 is an abundant number, since it is smaller than the sum of its proper divisors (31657338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26331138 is a wasteful number, since it uses less digits than its factorization.

26331138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24050 (or 24047 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 26331138 is about 5131.3875316526. The cubic root of 26331138 is about 297.5019909007.

The spelling of 26331138 in words is "twenty-six million, three hundred thirty-one thousand, one hundred thirty-eight".