26859040 has 96 divisors (see below), whose sum is σ = 70383600. Its totient is φ = 9621504.

The previous prime is 26859023. The next prime is 26859067. The reversal of 26859040 is 4095862.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 15649936 + 11209104 = 3956^2 + 3348^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26858987 and 26859005.

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 15 ways as a sum of consecutive naturals, for example, 76786 + ... + 77134.

Almost surely, 2^26859040 is an apocalyptic number.

26859040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26859040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35191800).

26859040 is an abundant number, since it is smaller than the sum of its proper divisors (43524560).

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

26859040 is a wasteful number, since it uses less digits than its factorization.

26859040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 26859040 is about 5182.5707906405. The cubic root of 26859040 is about 299.4770147438.

The spelling of 26859040 in words is "twenty-six million, eight hundred fifty-nine thousand, forty".