2190172 has 12 divisors (see below), whose sum is σ = 3905496. Its totient is φ = 1074320.

The previous prime is 2190169. The next prime is 2190173. The reversal of 2190172 is 2710912.

2190172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4954 + ... + 5377.

It is an arithmetic number, because the mean of its divisors is an integer number (325458).

2^2190172 is an apocalyptic number.

It is an amenable number.

2190172 is a deficient number, since it is larger than the sum of its proper divisors (1715324).

2190172 is a wasteful number, since it uses less digits than its factorization.

2190172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10388 (or 10386 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 2190172 is about 1479.9229709684. The cubic root of 2190172 is about 129.8651856852.

The spelling of 2190172 in words is "two million, one hundred ninety thousand, one hundred seventy-two".