22226290 has 8 divisors (see below), whose sum is σ = 40007340. Its totient is φ = 8890512.

The previous prime is 22226279. The next prime is 22226297. The reversal of 22226290 is 9262222.

It can be written as a sum of positive squares in 2 ways, for example, as 21613201 + 613089 = 4649^2 + 783^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22226297) 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, 1111305 + ... + 1111324.

Almost surely, 2^22226290 is an apocalyptic number.

22226290 is a deficient number, since it is larger than the sum of its proper divisors (17781050).

22226290 is a wasteful number, since it uses less digits than its factorization.

22226290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222636.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 22226290 is about 4714.4766411554. The cubic root of 22226290 is about 281.1613752039.

The spelling of 22226290 in words is "twenty-two million, two hundred twenty-six thousand, two hundred ninety".