22440173 has 8 divisors (see below), whose sum is σ = 25702080. Its totient is φ = 19192320.

The previous prime is 22440163. The next prime is 22440179. The reversal of 22440173 is 37104422.

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

It is not a de Polignac number, because 22440173 - 2¹² = 22436077 is a prime.

It is a super-2 number, since 2×22440173² = 1007122728539858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22440179) 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, 173 + ... + 6701.

It is an arithmetic number, because the mean of its divisors is an integer number (3212760).

Almost surely, 2^22440173 is an apocalyptic number.

It is an amenable number.

22440173 is a deficient number, since it is larger than the sum of its proper divisors (3261907).

22440173 is an equidigital number, since it uses as much as digits as its factorization.

22440173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7027.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 22440173 is about 4737.1059730599. The cubic root of 22440173 is about 282.0603671713.

Adding to 22440173 its reverse (37104422), we get a palindrome (59544595).

The spelling of 22440173 in words is "twenty-two million, four hundred forty thousand, one hundred seventy-three".