22072246 has 12 divisors (see below), whose sum is σ = 38513988. Its totient is φ = 9459492.

The previous prime is 22072241. The next prime is 22072247. The reversal of 22072246 is 64227022.

It is a self number, because there is not a number n which added to its sum of digits gives 22072246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22072241) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 112516 + ... + 112711.

It is an arithmetic number, because the mean of its divisors is an integer number (3209499).

Almost surely, 2^22072246 is an apocalyptic number.

22072246 is a deficient number, since it is larger than the sum of its proper divisors (16441742).

22072246 is a wasteful number, since it uses less digits than its factorization.

22072246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225243 (or 225236 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 22072246 is about 4698.1108969457. The cubic root of 22072246 is about 280.5103193427.

Adding to 22072246 its reverse (64227022), we get a palindrome (86299268).

The spelling of 22072246 in words is "twenty-two million, seventy-two thousand, two hundred forty-six".