2002172 has 12 divisors (see below), whose sum is σ = 3517080. Its totient is φ = 997296.

The previous prime is 2002159. The next prime is 2002199. The reversal of 2002172 is 2712002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479 + ... + 2057.

It is an arithmetic number, because the mean of its divisors is an integer number (293090).

2^2002172 is an apocalyptic number.

It is an amenable number.

2002172 is a deficient number, since it is larger than the sum of its proper divisors (1514908).

2002172 is a wasteful number, since it uses less digits than its factorization.

2002172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900 (or 1898 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 2002172 is about 1414.9812719609. The cubic root of 2002172 is about 126.0376976309.

Adding to 2002172 its reverse (2712002), we get a palindrome (4714174).

The spelling of 2002172 in words is "two million, two thousand, one hundred seventy-two".