22743745 has 8 divisors (see below), whose sum is σ = 27320616. Its totient is φ = 18176256.

The previous prime is 22743737. The next prime is 22743751. The reversal of 22743745 is 54734722.

It can be written as a sum of positive squares in 4 ways, for example, as 14258176 + 8485569 = 3776^2 + 2913^2 .

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 22743745 - 2³ = 22743737 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 22743745.

It is an unprimeable number.

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, 5209 + ... + 8521.

It is an arithmetic number, because the mean of its divisors is an integer number (3415077).

Almost surely, 2^22743745 is an apocalyptic number.

It is an amenable number.

22743745 is a deficient number, since it is larger than the sum of its proper divisors (4576871).

22743745 is a wasteful number, since it uses less digits than its factorization.

22743745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4691.

The product of its digits is 47040, while the sum is 34.

The square root of 22743745 is about 4769.0402598426. The cubic root of 22743745 is about 283.3265842299.

The spelling of 22743745 in words is "twenty-two million, seven hundred forty-three thousand, seven hundred forty-five".