26121204 has 30 divisors (see below), whose sum is σ = 68286834. Its totient is φ = 8706960.

The previous prime is 26121203. The next prime is 26121211. The reversal of 26121204 is 40212162.

It can be written as a sum of positive squares in only one way, i.e., 14424804 + 11696400 = 3798^2 + 3420^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26121203) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 39987 + ... + 40634.

Almost surely, 2^26121204 is an apocalyptic number.

It is an amenable number.

26121204 is an abundant number, since it is smaller than the sum of its proper divisors (42165630).

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

26121204 is a wasteful number, since it uses less digits than its factorization.

26121204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80637 (or 80626 counting only the distinct ones).

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

The square root of 26121204 is about 5110.8907247172. The cubic root of 26121204 is about 296.7092348685.

Adding to 26121204 its reverse (40212162), we get a palindrome (66333366).

The spelling of 26121204 in words is "twenty-six million, one hundred twenty-one thousand, two hundred four".