2180372 has 6 divisors (see below), whose sum is σ = 3815658. Its totient is φ = 1090184.

The previous prime is 2180371. The next prime is 2180389. The reversal of 2180372 is 2730812.

It can be written as a sum of positive squares in only one way, i.e., 1430416 + 749956 = 1196^2 + 866^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272543 + ... + 272550.

It is an arithmetic number, because the mean of its divisors is an integer number (635943).

2^2180372 is an apocalyptic number.

It is an amenable number.

2180372 is a deficient number, since it is larger than the sum of its proper divisors (1635286).

2180372 is a wasteful number, since it uses less digits than its factorization.

2180372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545097 (or 545095 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2180372 is about 1476.6082757455. The cubic root of 2180372 is about 129.6712006515.

It can be divided in two parts, 2180 and 372, that added together give a palindrome (2552).

The spelling of 2180372 in words is "two million, one hundred eighty thousand, three hundred seventy-two".