22068290 has 8 divisors (see below), whose sum is σ = 39722940. Its totient is φ = 8827312.

The previous prime is 22068287. The next prime is 22068307. The reversal of 22068290 is 9286022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21836929 + 231361 = 4673^2 + 481^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1103405 + ... + 1103424.

Almost surely, 2^22068290 is an apocalyptic number.

22068290 is a deficient number, since it is larger than the sum of its proper divisors (17654650).

22068290 is a wasteful number, since it uses less digits than its factorization.

22068290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206836.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 22068290 is about 4697.6898577918. The cubic root of 22068290 is about 280.4935597565.

The spelling of 22068290 in words is "twenty-two million, sixty-eight thousand, two hundred ninety".