26644464 has 240 divisors, whose sum is σ = 97493760. Its totient is φ = 6842880.

The previous prime is 26644463. The next prime is 26644487. The reversal of 26644464 is 46444662.

It is a happy number.

26644464 is a `hidden beast` number, since 2 + 6 + 644 + 4 + 6 + 4 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26644463) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 299332 + ... + 299420.

It is an arithmetic number, because the mean of its divisors is an integer number (406224).

Almost surely, 2^26644464 is an apocalyptic number.

26644464 is a gapful number since it is divisible by the number (24) 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 26644464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48746880).

26644464 is an abundant number, since it is smaller than the sum of its proper divisors (70849296).

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

26644464 is a wasteful number, since it uses less digits than its factorization.

26644464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 112 counting only the distinct ones).

The product of its digits is 110592, while the sum is 36.

The square root of 26644464 is about 5161.8275833274. The cubic root of 26644464 is about 298.6773774681.

It can be divided in two parts, 2 and 6644464, that added together give a palindrome (6644466).

The spelling of 26644464 in words is "twenty-six million, six hundred forty-four thousand, four hundred sixty-four".