22244489 has 4 divisors (see below), whose sum is σ = 22717824. Its totient is φ = 21771156.

The previous prime is 22244477. The next prime is 22244491. The reversal of 22244489 is 98444222.

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-22244489 is a prime.

It is a super-2 number, since 2×22244489² = 989634581742242, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22244429) 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, 236597 + ... + 236690.

It is an arithmetic number, because the mean of its divisors is an integer number (5679456).

Almost surely, 2^22244489 is an apocalyptic number.

It is an amenable number.

22244489 is a deficient number, since it is larger than the sum of its proper divisors (473335).

22244489 is an equidigital number, since it uses as much as digits as its factorization.

22244489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473334.

The product of its digits is 36864, while the sum is 35.

The square root of 22244489 is about 4716.4063650199. The cubic root of 22244489 is about 281.2380930597.

The spelling of 22244489 in words is "twenty-two million, two hundred forty-four thousand, four hundred eighty-nine".