22148817 has 8 divisors (see below), whose sum is σ = 29613696. Its totient is φ = 14724912.

The previous prime is 22148809. The next prime is 22148821. The reversal of 22148817 is 71884122.

It is a happy number.

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

It is not a de Polignac number, because 22148817 - 2³ = 22148809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22148417) 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, 8958 + ... + 11159.

It is an arithmetic number, because the mean of its divisors is an integer number (3701712).

Almost surely, 2^22148817 is an apocalyptic number.

It is an amenable number.

22148817 is a deficient number, since it is larger than the sum of its proper divisors (7464879).

22148817 is a wasteful number, since it uses less digits than its factorization.

22148817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20487.

The product of its digits is 7168, while the sum is 33.

The square root of 22148817 is about 4706.2529681266. The cubic root of 22148817 is about 280.8343184774.

The spelling of 22148817 in words is "twenty-two million, one hundred forty-eight thousand, eight hundred seventeen".