22180008 has 32 divisors (see below), whose sum is σ = 55576800. Its totient is φ = 7376448.

The previous prime is 22179977. The next prime is 22180009. The reversal of 22180008 is 80008122.

It is not an unprimeable number, because it can be changed into a prime (22180009) 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, 14110 + ... + 15602.

It is an arithmetic number, because the mean of its divisors is an integer number (1736775).

Almost surely, 2^22180008 is an apocalyptic number.

It is an amenable number.

22180008 is an abundant number, since it is smaller than the sum of its proper divisors (33396792).

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

22180008 is a wasteful number, since it uses less digits than its factorization.

22180008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121 (or 2117 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 22180008 is about 4709.5655850620. The cubic root of 22180008 is about 280.9660846510.

The spelling of 22180008 in words is "twenty-two million, one hundred eighty thousand, eight".