22016628 has 36 divisors (see below), whose sum is σ = 57160740. Its totient is φ = 7140096.

The previous prime is 22016569. The next prime is 22016639. The reversal of 22016628 is 82661022.

22016628 is a `hidden beast` number, since 2 + 20 + 16 + 628 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19820304 + 2196324 = 4452^2 + 1482^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6933 + ... + 9596.

Almost surely, 2^22016628 is an apocalyptic number.

It is an amenable number.

22016628 is an abundant number, since it is smaller than the sum of its proper divisors (35144112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22016628 is a wasteful number, since it uses less digits than its factorization.

22016628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16576 (or 16571 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 22016628 is about 4692.1879757742. The cubic root of 22016628 is about 280.2745096966.

The spelling of 22016628 in words is "twenty-two million, sixteen thousand, six hundred twenty-eight".