22180014 has 16 divisors (see below), whose sum is σ = 49289040. Its totient is φ = 7393320.

The previous prime is 22180013. The next prime is 22180031. The reversal of 22180014 is 41008122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22180013) 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, 205317 + ... + 205424.

It is an arithmetic number, because the mean of its divisors is an integer number (3080565).

Almost surely, 2^22180014 is an apocalyptic number.

22180014 is an abundant number, since it is smaller than the sum of its proper divisors (27109026).

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

22180014 is a wasteful number, since it uses less digits than its factorization.

22180014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410752 (or 410746 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 22180014 is about 4709.5662220633. The cubic root of 22180014 is about 280.9661099861.

Adding to 22180014 its reverse (41008122), we get a palindrome (63188136).

The spelling of 22180014 in words is "twenty-two million, one hundred eighty thousand, fourteen".