26444220 has 96 divisors (see below), whose sum is σ = 81768960. Its totient is φ = 6332160.

The previous prime is 26444203. The next prime is 26444239. The reversal of 26444220 is 2244462.

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, 67786 + ... + 68174.

It is an arithmetic number, because the mean of its divisors is an integer number (851760).

Almost surely, 2^26444220 is an apocalyptic number.

26444220 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 26444220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40884480).

26444220 is an abundant number, since it is smaller than the sum of its proper divisors (55324740).

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

26444220 is a wasteful number, since it uses less digits than its factorization.

26444220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 26444220 is about 5142.3943839422. The cubic root of 26444220 is about 297.9272678076.

Adding to 26444220 its reverse (2244462), we get a palindrome (28688682).

It can be divided in two parts, 264442 and 20, that added together give a palindrome (264462).

The spelling of 26444220 in words is "twenty-six million, four hundred forty-four thousand, two hundred twenty".