22173830 has 16 divisors (see below), whose sum is σ = 45614880. Its totient is φ = 7602432.

The previous prime is 22173829. The next prime is 22173847. The reversal of 22173830 is 3837122.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22173830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158315 + ... + 158454.

It is an arithmetic number, because the mean of its divisors is an integer number (2850930).

Almost surely, 2^22173830 is an apocalyptic number.

22173830 is an abundant number, since it is smaller than the sum of its proper divisors (23441050).

22173830 is a wasteful number, since it uses less digits than its factorization.

22173830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316783.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 22173830 is about 4708.9096402458. The cubic root of 22173830 is about 280.9399955462.

The spelling of 22173830 in words is "twenty-two million, one hundred seventy-three thousand, eight hundred thirty".