2193172 has 24 divisors (see below), whose sum is σ = 4036032. Its totient is φ = 1041600.

The previous prime is 2193167. The next prime is 2193173. The reversal of 2193172 is 2713912.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2193173) 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, 6897 + ... + 7207.

It is an arithmetic number, because the mean of its divisors is an integer number (168168).

2^2193172 is an apocalyptic number.

It is an amenable number.

2193172 is a deficient number, since it is larger than the sum of its proper divisors (1842860).

2193172 is a wasteful number, since it uses less digits than its factorization.

2193172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 397 counting only the distinct ones).

The product of its digits is 756, while the sum is 25.

The square root of 2193172 is about 1480.9361903877. The cubic root of 2193172 is about 129.9244531474.

The spelling of 2193172 in words is "two million, one hundred ninety-three thousand, one hundred seventy-two".