26441440 has 48 divisors (see below), whose sum is σ = 63549360. Its totient is φ = 10393600.

The previous prime is 26441423. The next prime is 26441447. The reversal of 26441440 is 4414462.

26441440 = 611² + 612² + ... + 674².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26441447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8040 + ... + 10840.

It is an arithmetic number, because the mean of its divisors is an integer number (1323945).

Almost surely, 2^26441440 is an apocalyptic number.

26441440 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 26441440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31774680).

26441440 is an abundant number, since it is smaller than the sum of its proper divisors (37107920).

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

26441440 is a wasteful number, since it uses less digits than its factorization.

26441440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875 (or 2867 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 26441440 is about 5142.1240747380. The cubic root of 26441440 is about 297.9168273808.

The spelling of 26441440 in words is "twenty-six million, four hundred forty-one thousand, four hundred forty".