26468221 has 4 divisors (see below), whose sum is σ = 28504252. Its totient is φ = 24432192.

The previous prime is 26468179. The next prime is 26468227. The reversal of 26468221 is 12286462.

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 2604996 + 23863225 = 1614^2 + 4885^2 .

It is a cyclic number.

It is not a de Polignac number, because 26468221 - 2¹³ = 26460029 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 (26468227) 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, 1017996 + ... + 1018021.

It is an arithmetic number, because the mean of its divisors is an integer number (7126063).

Almost surely, 2^26468221 is an apocalyptic number.

It is an amenable number.

26468221 is a deficient number, since it is larger than the sum of its proper divisors (2036031).

26468221 is a wasteful number, since it uses less digits than its factorization.

26468221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036030.

The product of its digits is 9216, while the sum is 31.

The square root of 26468221 is about 5144.7274952129. The cubic root of 26468221 is about 298.0173743305.

The spelling of 26468221 in words is "twenty-six million, four hundred sixty-eight thousand, two hundred twenty-one".