22249289 has 4 divisors (see below), whose sum is σ = 22967040. Its totient is φ = 21531540.

The previous prime is 22249267. The next prime is 22249301. The reversal of 22249289 is 98294222.

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 a de Polignac number, because none of the positive numbers 2^k-22249289 is a prime.

It is a super-2 number, since 2×22249289² = 990061722011042, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22249219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358829 + ... + 358890.

It is an arithmetic number, because the mean of its divisors is an integer number (5741760).

Almost surely, 2^22249289 is an apocalyptic number.

It is an amenable number.

22249289 is a deficient number, since it is larger than the sum of its proper divisors (717751).

22249289 is an equidigital number, since it uses as much as digits as its factorization.

22249289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717750.

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

The square root of 22249289 is about 4716.9151995769. The cubic root of 22249289 is about 281.2583204781.

The spelling of 22249289 in words is "twenty-two million, two hundred forty-nine thousand, two hundred eighty-nine".