22173798 has 16 divisors (see below), whose sum is σ = 46681920. Its totient is φ = 7002216.

The previous prime is 22173791. The next prime is 22173803. The reversal of 22173798 is 89737122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22173791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97140 + ... + 97367.

It is an arithmetic number, because the mean of its divisors is an integer number (2917620).

Almost surely, 2^22173798 is an apocalyptic number.

22173798 is an abundant number, since it is smaller than the sum of its proper divisors (24508122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22173798 is a wasteful number, since it uses less digits than its factorization.

22173798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194531.

The product of its digits is 42336, while the sum is 39.

The square root of 22173798 is about 4708.9062424304. The cubic root of 22173798 is about 280.9398604006.

The spelling of 22173798 in words is "twenty-two million, one hundred seventy-three thousand, seven hundred ninety-eight".