26221104 has 320 divisors, whose sum is σ = 99993600. Its totient is φ = 6386688.

The previous prime is 26221103. The next prime is 26221109. The reversal of 26221104 is 40112262.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (26221103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 904162 + ... + 904190.

It is an arithmetic number, because the mean of its divisors is an integer number (312480).

Almost surely, 2^26221104 is an apocalyptic number.

26221104 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 26221104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49996800).

26221104 is an abundant number, since it is smaller than the sum of its proper divisors (73772496).

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

26221104 is a wasteful number, since it uses less digits than its factorization.

26221104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 26221104 is about 5120.6546456483. The cubic root of 26221104 is about 297.0870064444.

Adding to 26221104 its reverse (40112262), we get a palindrome (66333366).

The spelling of 26221104 in words is "twenty-six million, two hundred twenty-one thousand, one hundred four".