22172814 has 24 divisors (see below), whose sum is σ = 49065120. Its totient is φ = 7233408.

The previous prime is 22172797. The next prime is 22172819. The reversal of 22172814 is 41827122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22172819) 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 11 ways as a sum of consecutive naturals, for example, 12259 + ... + 13950.

It is an arithmetic number, because the mean of its divisors is an integer number (2044380).

Almost surely, 2^22172814 is an apocalyptic number.

22172814 is an abundant number, since it is smaller than the sum of its proper divisors (26892306).

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

22172814 is a wasteful number, since it uses less digits than its factorization.

22172814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26264 (or 26261 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 22172814 is about 4708.8017584095. The cubic root of 22172814 is about 280.9357046111.

Adding to 22172814 its reverse (41827122), we get a palindrome (63999936).

The spelling of 22172814 in words is "twenty-two million, one hundred seventy-two thousand, eight hundred fourteen".