26394144 has 144 divisors (see below), whose sum is σ = 83655936. Its totient is φ = 7257600.

The previous prime is 26394139. The next prime is 26394161. The reversal of 26394144 is 44149362.

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 23 ways as a sum of consecutive naturals, for example, 145734 + ... + 145914.

It is an arithmetic number, because the mean of its divisors is an integer number (580944).

Almost surely, 2^26394144 is an apocalyptic number.

26394144 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 26394144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41827968).

26394144 is an abundant number, since it is smaller than the sum of its proper divisors (57261792).

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

26394144 is a wasteful number, since it uses less digits than its factorization.

26394144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 224 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 26394144 is about 5137.5231386340. The cubic root of 26394144 is about 297.7390926866.

The spelling of 26394144 in words is "twenty-six million, three hundred ninety-four thousand, one hundred forty-four".