22743489 has 4 divisors (see below), whose sum is σ = 30324656. Its totient is φ = 15162324.

The previous prime is 22743473. The next prime is 22743503. The reversal of 22743489 is 98434722.

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 not a de Polignac number, because 22743489 - 2⁴ = 22743473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22743449) 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 3 ways as a sum of consecutive naturals, for example, 3790579 + ... + 3790584.

It is an arithmetic number, because the mean of its divisors is an integer number (7581164).

Almost surely, 2^22743489 is an apocalyptic number.

It is an amenable number.

22743489 is a deficient number, since it is larger than the sum of its proper divisors (7581167).

22743489 is an equidigital number, since it uses as much as digits as its factorization.

22743489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7581166.

The product of its digits is 96768, while the sum is 39.

The square root of 22743489 is about 4769.0134199853. The cubic root of 22743489 is about 283.3255211994.

It can be divided in two parts, 22743 and 489, that added together give a palindrome (23232).

The spelling of 22743489 in words is "twenty-two million, seven hundred forty-three thousand, four hundred eighty-nine".