26805456 has 30 divisors (see below), whose sum is σ = 75018450. Its totient is φ = 8935104.

The previous prime is 26805407. The next prime is 26805461. The reversal of 26805456 is 65450862.

It can be written as a sum of positive squares in only one way, i.e., 24800400 + 2005056 = 4980^2 + 1416^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 26805456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92931 + ... + 93218.

It is an arithmetic number, because the mean of its divisors is an integer number (2500615).

Almost surely, 2^26805456 is an apocalyptic number.

It is an amenable number.

26805456 is an abundant number, since it is smaller than the sum of its proper divisors (48212994).

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

26805456 is a wasteful number, since it uses less digits than its factorization.

26805456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186163 (or 186154 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 26805456 is about 5177.3985745739. The cubic root of 26805456 is about 299.2777291449.

It can be divided in two parts, 26805 and 456, that added together give a triangular number (27261 = T₂₃₃).

The spelling of 26805456 in words is "twenty-six million, eight hundred five thousand, four hundred fifty-six".