22245871 has 8 divisors (see below), whose sum is σ = 23068080. Its totient is φ = 21427392.

The previous prime is 22245869. The next prime is 22245889. The reversal of 22245871 is 17854222.

It is a happy number.

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 22245871 - 2¹ = 22245869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22245841) 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, 18051 + ... + 19243.

It is an arithmetic number, because the mean of its divisors is an integer number (2883510).

Almost surely, 2^22245871 is an apocalyptic number.

22245871 is a deficient number, since it is larger than the sum of its proper divisors (822209).

22245871 is a wasteful number, since it uses less digits than its factorization.

22245871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865.

The product of its digits is 8960, while the sum is 31.

The square root of 22245871 is about 4716.5528725967. The cubic root of 22245871 is about 281.2439171689.

The spelling of 22245871 in words is "twenty-two million, two hundred forty-five thousand, eight hundred seventy-one".