22236774 has 32 divisors (see below), whose sum is σ = 51549696. Its totient is φ = 6263040.

The previous prime is 22236761. The next prime is 22236787. The reversal of 22236774 is 47763222.

It is an interprime number because it is at equal distance from previous prime (22236761) and next prime (22236787).

It is a Curzon number.

It is a congruent number.

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, 747 + ... + 6710.

It is an arithmetic number, because the mean of its divisors is an integer number (1610928).

Almost surely, 2^22236774 is an apocalyptic number.

22236774 is an abundant number, since it is smaller than the sum of its proper divisors (29312922).

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

22236774 is a wasteful number, since it uses less digits than its factorization.

22236774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7540.

The product of its digits is 28224, while the sum is 33.

The square root of 22236774 is about 4715.5884044306. The cubic root of 22236774 is about 281.2055756007.

Adding to 22236774 its reverse (47763222), we get a palindrome (69999996).

The spelling of 22236774 in words is "twenty-two million, two hundred thirty-six thousand, seven hundred seventy-four".