2188374 has 16 divisors (see below), whose sum is σ = 4391280. Its totient is φ = 727040.

The previous prime is 2188349. The next prime is 2188409. The reversal of 2188374 is 4738812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3094 + ... + 3734.

It is an arithmetic number, because the mean of its divisors is an integer number (274455).

2^2188374 is an apocalyptic number.

2188374 is an abundant number, since it is smaller than the sum of its proper divisors (2202906).

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

2188374 is a wasteful number, since it uses less digits than its factorization.

2188374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215.

The product of its digits is 10752, while the sum is 33.

The square root of 2188374 is about 1479.3153821954. The cubic root of 2188374 is about 129.8296387770.

The spelling of 2188374 in words is "two million, one hundred eighty-eight thousand, three hundred seventy-four".