22036774 has 4 divisors (see below), whose sum is σ = 33055164. Its totient is φ = 11018386.

The previous prime is 22036771. The next prime is 22036831. The reversal of 22036774 is 47763022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47763022 = 2 ⋅23881511.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22036771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5509192 + ... + 5509195.

It is an arithmetic number, because the mean of its divisors is an integer number (8263791).

Almost surely, 2^22036774 is an apocalyptic number.

22036774 is a deficient number, since it is larger than the sum of its proper divisors (11018390).

22036774 is a wasteful number, since it uses less digits than its factorization.

22036774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11018389.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 22036774 is about 4694.3342445974. The cubic root of 22036774 is about 280.3599706934.

Adding to 22036774 its reverse (47763022), we get a palindrome (69799796).

The spelling of 22036774 in words is "twenty-two million, thirty-six thousand, seven hundred seventy-four".