22247073 has 18 divisors (see below), whose sum is σ = 32588946. Its totient is φ = 14624352.

The previous prime is 22247059. The next prime is 22247077. The reversal of 22247073 is 37074222.

It can be written as a sum of positive squares in only one way, i.e., 16136289 + 6110784 = 4017^2 + 2472^2 .

It is not a de Polignac number, because 22247073 - 2⁸ = 22246817 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22247077) 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 17 ways as a sum of consecutive naturals, for example, 95365 + ... + 95597.

It is an arithmetic number, because the mean of its divisors is an integer number (1810497).

Almost surely, 2^22247073 is an apocalyptic number.

It is an amenable number.

22247073 is a deficient number, since it is larger than the sum of its proper divisors (10341873).

22247073 is a wasteful number, since it uses less digits than its factorization.

22247073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 22247073 is about 4716.6802944444. The cubic root of 22247073 is about 281.2489825148.

The spelling of 22247073 in words is "twenty-two million, two hundred forty-seven thousand, seventy-three".