2118898 has 16 divisors (see below), whose sum is σ = 3367296. Its totient is φ = 997920.

The previous prime is 2118889. The next prime is 2118917. The reversal of 2118898 is 8988112.

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, 3043 + ... + 3673.

It is an arithmetic number, because the mean of its divisors is an integer number (210456).

2^2118898 is an apocalyptic number.

2118898 is a deficient number, since it is larger than the sum of its proper divisors (1248398).

2118898 is a wasteful number, since it uses less digits than its factorization.

2118898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729.

The product of its digits is 9216, while the sum is 37.

The square root of 2118898 is about 1455.6435003118. The cubic root of 2118898 is about 128.4409030440.

The spelling of 2118898 in words is "two million, one hundred eighteen thousand, eight hundred ninety-eight".