22020236 has 24 divisors (see below), whose sum is σ = 46632096. Its totient is φ = 8881920.

The previous prime is 22020227. The next prime is 22020277. The reversal of 22020236 is 63202022.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22655 + ... + 23606.

It is an arithmetic number, because the mean of its divisors is an integer number (1943004).

Almost surely, 2^22020236 is an apocalyptic number.

It is an amenable number.

22020236 is an abundant number, since it is smaller than the sum of its proper divisors (24611860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22020236 is a wasteful number, since it uses less digits than its factorization.

22020236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46289 (or 46287 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22020236 is about 4692.5724288497. The cubic root of 22020236 is about 280.2898189619.

Adding to 22020236 its reverse (63202022), we get a palindrome (85222258).

The spelling of 22020236 in words is "twenty-two million, twenty thousand, two hundred thirty-six".