2188005 has 16 divisors (see below), whose sum is σ = 3523200. Its totient is φ = 1159488.

The previous prime is 2188001. The next prime is 2188031. The reversal of 2188005 is 5008812.

It is not a de Polignac number, because 2188005 - 2² = 2188001 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2619 + ... + 3351.

It is an arithmetic number, because the mean of its divisors is an integer number (220200).

2^2188005 is an apocalyptic number.

It is an amenable number.

2188005 is a deficient number, since it is larger than the sum of its proper divisors (1335195).

2188005 is a wasteful number, since it uses less digits than its factorization.

2188005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940.

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 2188005 is about 1479.1906570824. The cubic root of 2188005 is about 129.8223411473.

The spelling of 2188005 in words is "two million, one hundred eighty-eight thousand, five".