22707249 has 4 divisors (see below), whose sum is σ = 30276336. Its totient is φ = 15138164.

The previous prime is 22707247. The next prime is 22707259. The reversal of 22707249 is 94270722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22707249 - 2¹ = 22707247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22707241) 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 3 ways as a sum of consecutive naturals, for example, 3784539 + ... + 3784544.

It is an arithmetic number, because the mean of its divisors is an integer number (7569084).

Almost surely, 2^22707249 is an apocalyptic number.

It is an amenable number.

22707249 is a deficient number, since it is larger than the sum of its proper divisors (7569087).

22707249 is an equidigital number, since it uses as much as digits as its factorization.

22707249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7569086.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 22707249 is about 4765.2123772189. The cubic root of 22707249 is about 283.1749553924.

The spelling of 22707249 in words is "twenty-two million, seven hundred seven thousand, two hundred forty-nine".