2188430 has 8 divisors (see below), whose sum is σ = 3939192. Its totient is φ = 875368.

The previous prime is 2188429. The next prime is 2188447. The reversal of 2188430 is 348812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2188430.

It is a congruent 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, 109412 + ... + 109431.

It is an arithmetic number, because the mean of its divisors is an integer number (492399).

2^2188430 is an apocalyptic number.

2188430 is a deficient number, since it is larger than the sum of its proper divisors (1750762).

2188430 is a wasteful number, since it uses less digits than its factorization.

2188430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218850.

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

The square root of 2188430 is about 1479.3343097488. The cubic root of 2188430 is about 129.8307462047.

The spelling of 2188430 in words is "two million, one hundred eighty-eight thousand, four hundred thirty".