26240189 has 2 divisors, whose sum is σ = 26240190. Its totient is φ = 26240188.

The previous prime is 26240183. The next prime is 26240239. The reversal of 26240189 is 98104262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18344089 + 7896100 = 4283^2 + 2810^2 .

It is a cyclic number.

It is not a de Polignac number, because 26240189 - 2²⁰ = 25191613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26240183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13120094 + 13120095.

It is an arithmetic number, because the mean of its divisors is an integer number (13120095).

Almost surely, 2^26240189 is an apocalyptic number.

It is an amenable number.

26240189 is a deficient number, since it is larger than the sum of its proper divisors (1).

26240189 is an equidigital number, since it uses as much as digits as its factorization.

26240189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 26240189 is about 5122.5178379387. The cubic root of 26240189 is about 297.1590671080.

The spelling of 26240189 in words is "twenty-six million, two hundred forty thousand, one hundred eighty-nine".