26089440 has 192 divisors, whose sum is σ = 91699776. Its totient is φ = 6193152.

The previous prime is 26089381. The next prime is 26089463. The reversal of 26089440 is 4498062.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230824 + ... + 230936.

It is an arithmetic number, because the mean of its divisors is an integer number (477603).

Almost surely, 2^26089440 is an apocalyptic number.

26089440 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 26089440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45849888).

26089440 is an abundant number, since it is smaller than the sum of its proper divisors (65610336).

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

26089440 is a wasteful number, since it uses less digits than its factorization.

26089440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 26089440 is about 5107.7822976317. The cubic root of 26089440 is about 296.5889176105.

The spelling of 26089440 in words is "twenty-six million, eighty-nine thousand, four hundred forty".