22298737 has 4 divisors (see below), whose sum is σ = 22309236. Its totient is φ = 22288240.

The previous prime is 22298701. The next prime is 22298789. The reversal of 22298737 is 73789222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3297856 + 19000881 = 1816^2 + 4359^2 .

It is a cyclic number.

It is not a de Polignac number, because 22298737 - 2¹¹ = 22296689 is a prime.

It is a Smith number, since the sum of its digits (40) 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 self number, because there is not a number n which added to its sum of digits gives 22298737.

It is not an unprimeable number, because it can be changed into a prime (22298537) 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, 814 + ... + 6727.

It is an arithmetic number, because the mean of its divisors is an integer number (5577309).

Almost surely, 2^22298737 is an apocalyptic number.

It is an amenable number.

22298737 is a deficient number, since it is larger than the sum of its proper divisors (10499).

22298737 is an equidigital number, since it uses as much as digits as its factorization.

22298737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10498.

The product of its digits is 84672, while the sum is 40.

The square root of 22298737 is about 4722.1538517926. The cubic root of 22298737 is about 281.4665274474.

The spelling of 22298737 in words is "twenty-two million, two hundred ninety-eight thousand, seven hundred thirty-seven".