2188043 has 18 divisors (see below), whose sum is σ = 2628612. Its totient is φ = 1818960.

The previous prime is 2188037. The next prime is 2188049. The reversal of 2188043 is 3408812.

It is an interprime number because it is at equal distance from previous prime (2188037) and next prime (2188049).

It is not a de Polignac number, because 2188043 - 2⁶ = 2187979 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2188049) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20396 + ... + 20502.

It is an arithmetic number, because the mean of its divisors is an integer number (146034).

2^2188043 is an apocalyptic number.

2188043 is a deficient number, since it is larger than the sum of its proper divisors (440569).

2188043 is a wasteful number, since it uses less digits than its factorization.

2188043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 2188043 is about 1479.2035018888. The cubic root of 2188043 is about 129.8230927026.

The spelling of 2188043 in words is "two million, one hundred eighty-eight thousand, forty-three".