22749323 has 8 divisors (see below), whose sum is σ = 24074496. Its totient is φ = 21452200.

The previous prime is 22749283. The next prime is 22749343. The reversal of 22749323 is 32394722.

It is a happy number.

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 22749323 - 2²⁴ = 5972107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22749323.

It is not an unprimeable number, because it can be changed into a prime (22749343) 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, 5333 + ... + 8598.

It is an arithmetic number, because the mean of its divisors is an integer number (3009312).

Almost surely, 2^22749323 is an apocalyptic number.

22749323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22749323 is a deficient number, since it is larger than the sum of its proper divisors (1325173).

22749323 is a wasteful number, since it uses less digits than its factorization.

22749323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14025.

The product of its digits is 18144, while the sum is 32.

The square root of 22749323 is about 4769.6250376733. The cubic root of 22749323 is about 283.3497446857.

The spelling of 22749323 in words is "twenty-two million, seven hundred forty-nine thousand, three hundred twenty-three".