22243236 has 48 divisors (see below), whose sum is σ = 53524800. Its totient is φ = 7186432.

The previous prime is 22243229. The next prime is 22243283. The reversal of 22243236 is 63234222.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62836 + ... + 63188.

It is an arithmetic number, because the mean of its divisors is an integer number (1115100).

Almost surely, 2^22243236 is an apocalyptic number.

It is an amenable number.

22243236 is an abundant number, since it is smaller than the sum of its proper divisors (31281564).

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

22243236 is a wasteful number, since it uses less digits than its factorization.

22243236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508 (or 506 counting only the distinct ones).

The product of its digits is 3456, while the sum is 24.

The square root of 22243236 is about 4716.2735289633. The cubic root of 22243236 is about 281.2328123818.

Adding to 22243236 its reverse (63234222), we get a palindrome (85477458).

It can be divided in two parts, 2224 and 3236, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 22243236 in words is "twenty-two million, two hundred forty-three thousand, two hundred thirty-six".