22449247 has 2 divisors, whose sum is σ = 22449248. Its totient is φ = 22449246.

The previous prime is 22449233. The next prime is 22449257. The reversal of 22449247 is 74294422.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22449247 - 2¹⁵ = 22416479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22449257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11224623 + 11224624.

It is an arithmetic number, because the mean of its divisors is an integer number (11224624).

Almost surely, 2^22449247 is an apocalyptic number.

22449247 is a deficient number, since it is larger than the sum of its proper divisors (1).

22449247 is an equidigital number, since it uses as much as digits as its factorization.

22449247 is an evil number, because the sum of its binary digits is even.

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

The square root of 22449247 is about 4738.0636340176. The cubic root of 22449247 is about 282.0983804087.

The spelling of 22449247 in words is "twenty-two million, four hundred forty-nine thousand, two hundred forty-seven".