26204221 has 8 divisors (see below), whose sum is σ = 26633600. Its totient is φ = 25777440.

The previous prime is 26204219. The next prime is 26204257. The reversal of 26204221 is 12240262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26204221 - 2¹ = 26204219 is a prime.

It is a super-2 number, since 2×26204221² = 1373322396433682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26204281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31906 + ... + 32716.

It is an arithmetic number, because the mean of its divisors is an integer number (3329200).

Almost surely, 2^26204221 is an apocalyptic number.

It is an amenable number.

26204221 is a deficient number, since it is larger than the sum of its proper divisors (429379).

26204221 is an equidigital number, since it uses as much as digits as its factorization.

26204221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 26204221 is about 5119.0058605163. The cubic root of 26204221 is about 297.0232308840.

Adding to 26204221 its reverse (12240262), we get a palindrome (38444483).

The spelling of 26204221 in words is "twenty-six million, two hundred four thousand, two hundred twenty-one".