2118700 has 18 divisors (see below), whose sum is σ = 4597796. Its totient is φ = 847440.

The previous prime is 2118689. The next prime is 2118703. The reversal of 2118700 is 78112.

It is not an unprimeable number, because it can be changed into a prime (2118703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10494 + ... + 10693.

2^2118700 is an apocalyptic number.

2118700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2118700 is an abundant number, since it is smaller than the sum of its proper divisors (2479096).

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

2118700 is a wasteful number, since it uses less digits than its factorization.

2118700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21201 (or 21194 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 2118700 is about 1455.5754875650. The cubic root of 2118700 is about 128.4369022079.

It can be divided in two parts, 211 and 8700, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 2118700 in words is "two million, one hundred eighteen thousand, seven hundred".