26104104 has 72 divisors (see below), whose sum is σ = 76595610. Its totient is φ = 7983936.

The previous prime is 26104097. The next prime is 26104109. The reversal of 26104104 is 40140162.

It can be written as a sum of positive squares in only one way, i.e., 25100100 + 1004004 = 5010^2 + 1002^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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 (26104109) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 156229 + ... + 156395.

Almost surely, 2^26104104 is an apocalyptic number.

26104104 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 26104104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38297805).

26104104 is an abundant number, since it is smaller than the sum of its proper divisors (50491506).

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

26104104 is a wasteful number, since it uses less digits than its factorization.

26104104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 185 counting only the distinct ones).

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

The square root of 26104104 is about 5109.2175526200. The cubic root of 26104104 is about 296.6444747669.

Adding to 26104104 its reverse (40140162), we get a palindrome (66244266).

The spelling of 26104104 in words is "twenty-six million, one hundred four thousand, one hundred four".