22220672 has 16 divisors (see below), whose sum is σ = 44268000. Its totient is φ = 11110272.

The previous prime is 22220651. The next prime is 22220713. The reversal of 22220672 is 27602222.

It is a tau number, because it is divible by the number of its divisors (16).

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, 86672 + ... + 86927.

It is an arithmetic number, because the mean of its divisors is an integer number (2766750).

Almost surely, 2^22220672 is an apocalyptic number.

It is an amenable number.

22220672 is a deficient number, since it is larger than the sum of its proper divisors (22047328).

22220672 is an equidigital number, since it uses as much as digits as its factorization.

22220672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173613 (or 173601 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 22220672 is about 4713.8807791458. The cubic root of 22220672 is about 281.1376840749.

Adding to 22220672 its reverse (27602222), we get a palindrome (49822894).

The spelling of 22220672 in words is "twenty-two million, two hundred twenty thousand, six hundred seventy-two".