22273245 has 16 divisors (see below), whose sum is σ = 39597120. Its totient is φ = 11878992.

The previous prime is 22273243. The next prime is 22273261. The reversal of 22273245 is 54237222.

It is not a de Polignac number, because 22273245 - 2¹ = 22273243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22273243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82359 + ... + 82628.

It is an arithmetic number, because the mean of its divisors is an integer number (2474820).

Almost surely, 2^22273245 is an apocalyptic number.

It is an amenable number.

22273245 is a deficient number, since it is larger than the sum of its proper divisors (17323875).

22273245 is a wasteful number, since it uses less digits than its factorization.

22273245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165001 (or 164995 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 22273245 is about 4719.4538878985. The cubic root of 22273245 is about 281.3592286846.

The spelling of 22273245 in words is "twenty-two million, two hundred seventy-three thousand, two hundred forty-five".