22648745 has 32 divisors (see below), whose sum is σ = 32313600. Its totient is φ = 14918400.

The previous prime is 22648733. The next prime is 22648753. The reversal of 22648745 is 54784622.

It is not a de Polignac number, because 22648745 - 2¹⁴ = 22632361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22648699 and 22648708.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151931 + ... + 152079.

It is an arithmetic number, because the mean of its divisors is an integer number (1009800).

Almost surely, 2^22648745 is an apocalyptic number.

It is an amenable number.

22648745 is a deficient number, since it is larger than the sum of its proper divisors (9664855).

22648745 is a wasteful number, since it uses less digits than its factorization.

22648745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305.

The product of its digits is 107520, while the sum is 38.

The square root of 22648745 is about 4759.0697620438. The cubic root of 22648745 is about 282.9315512432.

The spelling of 22648745 in words is "twenty-two million, six hundred forty-eight thousand, seven hundred forty-five".