22130445 has 8 divisors (see below), whose sum is σ = 35408736. Its totient is φ = 11802896.

The previous prime is 22130441. The next prime is 22130483. The reversal of 22130445 is 54403122.

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 22130445 - 2² = 22130441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22130441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737667 + ... + 737696.

It is an arithmetic number, because the mean of its divisors is an integer number (4426092).

Almost surely, 2^22130445 is an apocalyptic number.

It is an amenable number.

22130445 is a deficient number, since it is larger than the sum of its proper divisors (13278291).

22130445 is a wasteful number, since it uses less digits than its factorization.

22130445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475371.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 22130445 is about 4704.3006919201. The cubic root of 22130445 is about 280.7566481844.

Adding to 22130445 its reverse (54403122), we get a palindrome (76533567).

The spelling of 22130445 in words is "twenty-two million, one hundred thirty thousand, four hundred forty-five".