2220180 has 24 divisors (see below), whose sum is σ = 6216672. Its totient is φ = 592032.

The previous prime is 2220157. The next prime is 2220187. The reversal of 2220180 is 810222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220187) 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, 18442 + ... + 18561.

It is an arithmetic number, because the mean of its divisors is an integer number (259028).

2^2220180 is an apocalyptic number.

2220180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220180 is an abundant number, since it is smaller than the sum of its proper divisors (3996492).

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

2220180 is a wasteful number, since it uses less digits than its factorization.

2220180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37015 (or 37013 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2220180 is about 1490.0268453957. The cubic root of 2220180 is about 130.4556006385.

It can be divided in two parts, 22 and 20180, that added together give a palindrome (20202).

The spelling of 2220180 in words is "two million, two hundred twenty thousand, one hundred eighty".