2188365 has 16 divisors (see below), whose sum is σ = 3596928. Its totient is φ = 1135296.

The previous prime is 2188349. The next prime is 2188409. The reversal of 2188365 is 5638812.

It is a happy number.

It is not a de Polignac number, because 2188365 - 2⁴ = 2188349 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1417 + ... + 2526.

It is an arithmetic number, because the mean of its divisors is an integer number (224808).

2^2188365 is an apocalyptic number.

It is an amenable number.

2188365 is a deficient number, since it is larger than the sum of its proper divisors (1408563).

2188365 is a wasteful number, since it uses less digits than its factorization.

2188365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3988.

The product of its digits is 11520, while the sum is 33.

The square root of 2188365 is about 1479.3123402446. The cubic root of 2188365 is about 129.8294607958.

The spelling of 2188365 in words is "two million, one hundred eighty-eight thousand, three hundred sixty-five".