22117426 has 8 divisors (see below), whose sum is σ = 33196140. Its totient is φ = 11052048.

The previous prime is 22117399. The next prime is 22117427. The reversal of 22117426 is 62471122.

It can be written as a sum of positive squares in 2 ways, for example, as 18931201 + 3186225 = 4351^2 + 1785^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 22117426.

It is not an unprimeable number, because it can be changed into a prime (22117427) 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, 4440 + ... + 7996.

Almost surely, 2^22117426 is an apocalyptic number.

22117426 is a deficient number, since it is larger than the sum of its proper divisors (11078714).

22117426 is a wasteful number, since it uses less digits than its factorization.

22117426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6668.

The product of its digits is 1344, while the sum is 25.

The square root of 22117426 is about 4702.9167545259. The cubic root of 22117426 is about 280.7015824473.

Adding to 22117426 its reverse (62471122), we get a palindrome (84588548).

The spelling of 22117426 in words is "twenty-two million, one hundred seventeen thousand, four hundred twenty-six".