22238653 has 4 divisors (see below), whose sum is σ = 22263228. Its totient is φ = 22214080.

The previous prime is 22238639. The next prime is 22238663. The reversal of 22238653 is 35683222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35683222 = 2 ⋅17841611.

It can be written as a sum of positive squares in 2 ways, for example, as 17455684 + 4782969 = 4178^2 + 2187^2 .

It is a cyclic number.

It is not a de Polignac number, because 22238653 - 2⁹ = 22238141 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22238603) 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, 10876 + ... + 12757.

It is an arithmetic number, because the mean of its divisors is an integer number (5565807).

Almost surely, 2^22238653 is an apocalyptic number.

It is an amenable number.

22238653 is a deficient number, since it is larger than the sum of its proper divisors (24575).

22238653 is an equidigital number, since it uses as much as digits as its factorization.

22238653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24574.

The product of its digits is 17280, while the sum is 31.

The square root of 22238653 is about 4715.7876330471. The cubic root of 22238653 is about 281.2134959701.

The spelling of 22238653 in words is "twenty-two million, two hundred thirty-eight thousand, six hundred fifty-three".