26731264 has 54 divisors (see below), whose sum is σ = 62098764. Its totient is φ = 11450880.

The previous prime is 26731247. The next prime is 26731273. The reversal of 26731264 is 46213762.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11479 + ... + 13609.

Almost surely, 2^26731264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26731264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31049382).

26731264 is an abundant number, since it is smaller than the sum of its proper divisors (35367500).

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

26731264 is an equidigital number, since it uses as much as digits as its factorization.

26731264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161 (or 2140 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 26731264 is about 5170.2286216375. The cubic root of 26731264 is about 299.0013609033.

The spelling of 26731264 in words is "twenty-six million, seven hundred thirty-one thousand, two hundred sixty-four".