22246628 has 6 divisors (see below), whose sum is σ = 38931606. Its totient is φ = 11123312.

The previous prime is 22246621. The next prime is 22246667. The reversal of 22246628 is 82664222.

It can be written as a sum of positive squares in only one way, i.e., 11343424 + 10903204 = 3368^2 + 3302^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22246594 and 22246603.

It is not an unprimeable number, because it can be changed into a prime (22246621) 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 as a sum of consecutive naturals, namely, 2780825 + ... + 2780832.

It is an arithmetic number, because the mean of its divisors is an integer number (6488601).

Almost surely, 2^22246628 is an apocalyptic number.

It is an amenable number.

22246628 is a deficient number, since it is larger than the sum of its proper divisors (16684978).

22246628 is a wasteful number, since it uses less digits than its factorization.

22246628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5561661 (or 5561659 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 22246628 is about 4716.6331211999. The cubic root of 22246628 is about 281.2471072624.

The spelling of 22246628 in words is "twenty-two million, two hundred forty-six thousand, six hundred twenty-eight".