22744919 has 8 divisors (see below), whose sum is σ = 24000000. Its totient is φ = 21495672.

The previous prime is 22744901. The next prime is 22744933. The reversal of 22744919 is 91944722.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22744919 is a prime.

It is a super-2 number, since 2×22744919² = 1034662680633122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22744019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8282 + ... + 10680.

It is an arithmetic number, because the mean of its divisors is an integer number (3000000).

Almost surely, 2^22744919 is an apocalyptic number.

22744919 is a deficient number, since it is larger than the sum of its proper divisors (1255081).

22744919 is a wasteful number, since it uses less digits than its factorization.

22744919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917.

The product of its digits is 36288, while the sum is 38.

The square root of 22744919 is about 4769.1633438162. The cubic root of 22744919 is about 283.3314591187.

The spelling of 22744919 in words is "twenty-two million, seven hundred forty-four thousand, nine hundred nineteen".