22180854 has 16 divisors (see below), whose sum is σ = 44448048. Its totient is φ = 7379232.

The previous prime is 22180817. The next prime is 22180859. The reversal of 22180854 is 45808122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22180859) 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, 24 + ... + 6660.

It is an arithmetic number, because the mean of its divisors is an integer number (2778003).

Almost surely, 2^22180854 is an apocalyptic number.

22180854 is an abundant number, since it is smaller than the sum of its proper divisors (22267194).

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

22180854 is a wasteful number, since it uses less digits than its factorization.

22180854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7199.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 22180854 is about 4709.6554014068. The cubic root of 22180854 is about 280.9696568512.

Adding to 22180854 its reverse (45808122), we get a palindrome (67988976).

The spelling of 22180854 in words is "twenty-two million, one hundred eighty thousand, eight hundred fifty-four".