22387226 has 8 divisors (see below), whose sum is σ = 33611700. Its totient is φ = 11183328.

The previous prime is 22387207. The next prime is 22387229. The reversal of 22387226 is 62278322.

It can be written as a sum of positive squares in 2 ways, for example, as 20241001 + 2146225 = 4499^2 + 1465^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 22387192 and 22387201.

It is not an unprimeable number, because it can be changed into a prime (22387229) 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, 2051 + ... + 6998.

Almost surely, 2^22387226 is an apocalyptic number.

22387226 is a deficient number, since it is larger than the sum of its proper divisors (11224474).

22387226 is a wasteful number, since it uses less digits than its factorization.

22387226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10288.

The product of its digits is 16128, while the sum is 32.

The square root of 22387226 is about 4731.5141339745. The cubic root of 22387226 is about 281.8383544542.

The spelling of 22387226 in words is "twenty-two million, three hundred eighty-seven thousand, two hundred twenty-six".