2002188 has 12 divisors (see below), whose sum is σ = 4671800. Its totient is φ = 667392.

The previous prime is 2002159. The next prime is 2002199. The reversal of 2002188 is 8812002.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83413 + ... + 83436.

2^2002188 is an apocalyptic number.

It is an amenable number.

2002188 is an abundant number, since it is smaller than the sum of its proper divisors (2669612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2002188 is a wasteful number, since it uses less digits than its factorization.

2002188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166856 (or 166854 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 2002188 is about 1414.9869257347. The cubic root of 2002188 is about 126.0380333660.

The spelling of 2002188 in words is "two million, two thousand, one hundred eighty-eight".