2180322 has 24 divisors (see below), whose sum is σ = 4780620. Its totient is φ = 718080.

The previous prime is 2180303. The next prime is 2180329. The reversal of 2180322 is 2230812.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1929321 + 251001 = 1389^2 + 501^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2180295 and 2180304.

It is not an unprimeable number, because it can be changed into a prime (2180329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 922 + ... + 2282.

2^2180322 is an apocalyptic number.

2180322 is an abundant number, since it is smaller than the sum of its proper divisors (2600298).

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

2180322 is a wasteful number, since it uses less digits than its factorization.

2180322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458 (or 1455 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2180322 is about 1476.5913449563. The cubic root of 2180322 is about 129.6702094430.

The spelling of 2180322 in words is "two million, one hundred eighty thousand, three hundred twenty-two".