2180072 has 16 divisors (see below), whose sum is σ = 4144740. Its totient is φ = 1074816.

The previous prime is 2180071. The next prime is 2180083. The reversal of 2180072 is 2700812.

It can be written as a sum of positive squares in 2 ways, for example, as 2172676 + 7396 = 1474^2 + 86^2 .

It is not an unprimeable number, because it can be changed into a prime (2180071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1283 + ... + 2450.

2^2180072 is an apocalyptic number.

It is an amenable number.

2180072 is a deficient number, since it is larger than the sum of its proper divisors (1964668).

2180072 is a wasteful number, since it uses less digits than its factorization.

2180072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812 (or 3808 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 2180072 is about 1476.5066880986. The cubic root of 2180072 is about 129.6652531734.

Adding to 2180072 its reverse (2700812), we get a palindrome (4880884).

The spelling of 2180072 in words is "two million, one hundred eighty thousand, seventy-two".