22268641 has 4 divisors (see below), whose sum is σ = 22361284. Its totient is φ = 22176000.

The previous prime is 22268579. The next prime is 22268671. The reversal of 22268641 is 14686222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14686222 = 2 ⋅7343111.

It can be written as a sum of positive squares in 2 ways, for example, as 18524416 + 3744225 = 4304^2 + 1935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22268641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22268671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45960 + ... + 46441.

It is an arithmetic number, because the mean of its divisors is an integer number (5590321).

Almost surely, 2^22268641 is an apocalyptic number.

It is an amenable number.

22268641 is a deficient number, since it is larger than the sum of its proper divisors (92643).

22268641 is an equidigital number, since it uses as much as digits as its factorization.

22268641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92642.

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

The square root of 22268641 is about 4718.9660943897. The cubic root of 22268641 is about 281.3398411915.

The spelling of 22268641 in words is "twenty-two million, two hundred sixty-eight thousand, six hundred forty-one".