24428219 has 2 divisors, whose sum is σ = 24428220. Its totient is φ = 24428218.

The previous prime is 24428161. The next prime is 24428221. The reversal of 24428219 is 91282442.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24428219 is a prime.

It is a super-2 number, since 2×24428219² = 1193475767023922, which contains 22 as substring.

Together with 24428221, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (24422219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12214109 + 12214110.

It is an arithmetic number, because the mean of its divisors is an integer number (12214110).

Almost surely, 2^24428219 is an apocalyptic number.

24428219 is a deficient number, since it is larger than the sum of its proper divisors (1).

24428219 is an equidigital number, since it uses as much as digits as its factorization.

24428219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 32.

The square root of 24428219 is about 4942.4911734873. The cubic root of 24428219 is about 290.1553626499.

The spelling of 24428219 in words is "twenty-four million, four hundred twenty-eight thousand, two hundred nineteen".