22036444 has 6 divisors (see below), whose sum is σ = 38563784. Its totient is φ = 11018220.

The previous prime is 22036411. The next prime is 22036451. The reversal of 22036444 is 44463022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2754552 + ... + 2754559.

Almost surely, 2^22036444 is an apocalyptic number.

It is an amenable number.

22036444 is a deficient number, since it is larger than the sum of its proper divisors (16527340).

22036444 is a wasteful number, since it uses less digits than its factorization.

22036444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5509115 (or 5509113 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 22036444 is about 4694.2990957117. The cubic root of 22036444 is about 280.3585712258.

Adding to 22036444 its reverse (44463022), we get a palindrome (66499466).

The spelling of 22036444 in words is "twenty-two million, thirty-six thousand, four hundred forty-four".