22180030 has 32 divisors (see below), whose sum is σ = 42456960. Its totient is φ = 8318880.

The previous prime is 22180013. The next prime is 22180031. The reversal of 22180030 is 3008122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22179986 and 22180013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22180031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19785 + ... + 20875.

It is an arithmetic number, because the mean of its divisors is an integer number (1326780).

Almost surely, 2^22180030 is an apocalyptic number.

22180030 is a deficient number, since it is larger than the sum of its proper divisors (20276930).

22180030 is a wasteful number, since it uses less digits than its factorization.

22180030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 22180030 is about 4709.5679207333. The cubic root of 22180030 is about 280.9661775462.

Adding to 22180030 its reverse (3008122), we get a palindrome (25188152).

The spelling of 22180030 in words is "twenty-two million, one hundred eighty thousand, thirty".