22449745 has 8 divisors (see below), whose sum is σ = 26980416. Its totient is φ = 17932656.

The previous prime is 22449737. The next prime is 22449761. The reversal of 22449745 is 54794422.

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 22449745 - 2³ = 22449737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 694 + ... + 6736.

It is an arithmetic number, because the mean of its divisors is an integer number (3372552).

Almost surely, 2^22449745 is an apocalyptic number.

It is an amenable number.

22449745 is a deficient number, since it is larger than the sum of its proper divisors (4530671).

22449745 is an equidigital number, since it uses as much as digits as its factorization.

22449745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6791.

The product of its digits is 80640, while the sum is 37.

The square root of 22449745 is about 4738.1161868405. The cubic root of 22449745 is about 282.1004663577.

The spelling of 22449745 in words is "twenty-two million, four hundred forty-nine thousand, seven hundred forty-five".