26892640 has 48 divisors (see below), whose sum is σ = 67277952. Its totient is φ = 10123264.

The previous prime is 26892637. The next prime is 26892653. The reversal of 26892640 is 4629862.

It is a self number, because there is not a number n which added to its sum of digits gives 26892640.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2224 + ... + 7663.

It is an arithmetic number, because the mean of its divisors is an integer number (1401624).

Almost surely, 2^26892640 is an apocalyptic number.

26892640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26892640 is an abundant number, since it is smaller than the sum of its proper divisors (40385312).

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

26892640 is a wasteful number, since it uses less digits than its factorization.

26892640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9919 (or 9911 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 26892640 is about 5185.8114119200. The cubic root of 26892640 is about 299.6018421720.

It can be divided in two parts, 2689 and 2640, that added together give a square (5329 = 73²).

The spelling of 26892640 in words is "twenty-six million, eight hundred ninety-two thousand, six hundred forty".