22023236 has 12 divisors (see below), whose sum is σ = 40216512. Its totient is φ = 10532808.

The previous prime is 22023229. The next prime is 22023241. The reversal of 22023236 is 63232022.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119600 + ... + 119783.

It is an arithmetic number, because the mean of its divisors is an integer number (3351376).

Almost surely, 2^22023236 is an apocalyptic number.

It is an amenable number.

22023236 is a deficient number, since it is larger than the sum of its proper divisors (18193276).

22023236 is a wasteful number, since it uses less digits than its factorization.

22023236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239410 (or 239408 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 22023236 is about 4692.8920720596. The cubic root of 22023236 is about 280.3025471221.

Adding to 22023236 its reverse (63232022), we get a palindrome (85255258).

The spelling of 22023236 in words is "twenty-two million, twenty-three thousand, two hundred thirty-six".