22249829 has 8 divisors (see below), whose sum is σ = 25808448. Its totient is φ = 18786240.

The previous prime is 22249807. The next prime is 22249841. The reversal of 22249829 is 92894222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22249829 - 2⁸ = 22249573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22249792 and 22249801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22249529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23252 + ... + 24189.

It is an arithmetic number, because the mean of its divisors is an integer number (3226056).

Almost surely, 2^22249829 is an apocalyptic number.

It is an amenable number.

22249829 is a deficient number, since it is larger than the sum of its proper divisors (3558619).

22249829 is an equidigital number, since it uses as much as digits as its factorization.

22249829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47515.

The product of its digits is 41472, while the sum is 38.

The square root of 22249829 is about 4716.9724400297. The cubic root of 22249829 is about 281.2605958806.

The spelling of 22249829 in words is "twenty-two million, two hundred forty-nine thousand, eight hundred twenty-nine".