26223616 has 22 divisors (see below), whose sum is σ = 52423670. Its totient is φ = 13111296.

The previous prime is 26223563. The next prime is 26223619. The reversal of 26223616 is 61632262.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26214400 + 9216 = 5120^2 + 96^2 .

It is a super-2 number, since 2×26223616² = 1375356072230912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26223619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11781 + ... + 13828.

Almost surely, 2^26223616 is an apocalyptic number.

It is an amenable number.

26223616 is a deficient number, since it is larger than the sum of its proper divisors (26200054).

26223616 is an equidigital number, since it uses as much as digits as its factorization.

26223616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25629 (or 25611 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 26223616 is about 5120.8999209123. The cubic root of 26223616 is about 297.0964931887.

Adding to 26223616 its reverse (61632262), we get a palindrome (87855878).

The spelling of 26223616 in words is "twenty-six million, two hundred twenty-three thousand, six hundred sixteen".