22628201 has 6 divisors (see below), whose sum is σ = 23257710. Its totient is φ = 22015296.

The previous prime is 22628131. The next prime is 22628231. The reversal of 22628201 is 10282622.

It can be written as a sum of positive squares in 3 ways, for example, as 17682025 + 4946176 = 4205^2 + 2224^2 .

It is not a de Polignac number, because 22628201 - 2¹⁰ = 22627177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22628231) 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, 6896 + ... + 9633.

It is an arithmetic number, because the mean of its divisors is an integer number (3876285).

Almost surely, 2^22628201 is an apocalyptic number.

It is an amenable number.

22628201 is a deficient number, since it is larger than the sum of its proper divisors (629509).

22628201 is an equidigital number, since it uses as much as digits as its factorization.

22628201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16603 (or 16566 counting only the distinct ones).

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

The square root of 22628201 is about 4756.9108673592. The cubic root of 22628201 is about 282.8459791120.

The spelling of 22628201 in words is "twenty-two million, six hundred twenty-eight thousand, two hundred one".