22447249 has 16 divisors (see below), whose sum is σ = 25220160. Its totient is φ = 19805760.

The previous prime is 22447237. The next prime is 22447273. The reversal of 22447249 is 94274422.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22447249 - 2⁷ = 22447121 is a prime.

It is a super-3 number, since 3×22447249³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22447279) 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, 80899 + ... + 81175.

It is an arithmetic number, because the mean of its divisors is an integer number (1576260).

Almost surely, 2^22447249 is an apocalyptic number.

It is an amenable number.

22447249 is a deficient number, since it is larger than the sum of its proper divisors (2772911).

22447249 is a wasteful number, since it uses less digits than its factorization.

22447249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480.

The product of its digits is 32256, while the sum is 34.

The square root of 22447249 is about 4737.8527836985. The cubic root of 22447249 is about 282.0900111705.

The spelling of 22447249 in words is "twenty-two million, four hundred forty-seven thousand, two hundred forty-nine".