22201628 has 12 divisors (see below), whose sum is σ = 39903192. Its totient is φ = 10800720.

The previous prime is 22201579. The next prime is 22201661. The reversal of 22201628 is 82610222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74858 + ... + 75153.

It is an arithmetic number, because the mean of its divisors is an integer number (3325266).

Almost surely, 2^22201628 is an apocalyptic number.

It is an amenable number.

22201628 is a deficient number, since it is larger than the sum of its proper divisors (17701564).

22201628 is a wasteful number, since it uses less digits than its factorization.

22201628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150052 (or 150050 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 22201628 is about 4711.8603544672. The cubic root of 22201628 is about 281.0573457259.

The spelling of 22201628 in words is "twenty-two million, two hundred one thousand, six hundred twenty-eight".