26020189 has 4 divisors (see below), whose sum is σ = 28021756. Its totient is φ = 24018624.

The previous prime is 26020157. The next prime is 26020207. The reversal of 26020189 is 98102062.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15405625 + 10614564 = 3925^2 + 3258^2 .

It is a cyclic number.

It is not a de Polignac number, because 26020189 - 2⁵ = 26020157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26020109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000764 + ... + 1000789.

It is an arithmetic number, because the mean of its divisors is an integer number (7005439).

Almost surely, 2^26020189 is an apocalyptic number.

It is an amenable number.

26020189 is a deficient number, since it is larger than the sum of its proper divisors (2001567).

26020189 is a wasteful number, since it uses less digits than its factorization.

26020189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001566.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 26020189 is about 5100.9988237599. The cubic root of 26020189 is about 296.3262662754.

It can be divided in two parts, 260 and 20189, that added together give a square (20449 = 143²).

The spelling of 26020189 in words is "twenty-six million, twenty thousand, one hundred eighty-nine".