22724273 has 16 divisors (see below), whose sum is σ = 26831616. Its totient is φ = 18973440.

The previous prime is 22724267. The next prime is 22724311. The reversal of 22724273 is 37242722.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22724273 - 2¹⁴ = 22707889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22724173) 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, 52265 + ... + 52697.

It is an arithmetic number, because the mean of its divisors is an integer number (1676976).

Almost surely, 2^22724273 is an apocalyptic number.

It is an amenable number.

22724273 is a deficient number, since it is larger than the sum of its proper divisors (4107343).

22724273 is a wasteful number, since it uses less digits than its factorization.

22724273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824.

The product of its digits is 9408, while the sum is 29.

The square root of 22724273 is about 4766.9983217954. The cubic root of 22724273 is about 283.2457046967.

Adding to 22724273 its reverse (37242722), we get a palindrome (59966995).

The spelling of 22724273 in words is "twenty-two million, seven hundred twenty-four thousand, two hundred seventy-three".