2188930 has 16 divisors (see below), whose sum is σ = 3996864. Its totient is φ = 862960.

The previous prime is 2188919. The next prime is 2188981. The reversal of 2188930 is 398812.

It is a junction number, because it is equal to n+sod(n) for n = 2188892 and 2188901.

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, 832 + ... + 2251.

It is an arithmetic number, because the mean of its divisors is an integer number (249804).

2^2188930 is an apocalyptic number.

2188930 is a deficient number, since it is larger than the sum of its proper divisors (1807934).

2188930 is a wasteful number, since it uses less digits than its factorization.

2188930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 2188930 is about 1479.5032950284. The cubic root of 2188930 is about 129.8406331145.

The spelling of 2188930 in words is "two million, one hundred eighty-eight thousand, nine hundred thirty".