2118884 has 12 divisors (see below), whose sum is σ = 3720108. Its totient is φ = 1056000.

The previous prime is 2118877. The next prime is 2118889. The reversal of 2118884 is 4888112.

It can be written as a sum of positive squares in 2 ways, for example, as 2044900 + 73984 = 1430^2 + 272^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2118884.

It is not an unprimeable number, because it can be changed into a prime (2118889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944 + ... + 2264.

It is an arithmetic number, because the mean of its divisors is an integer number (310009).

2^2118884 is an apocalyptic number.

It is an amenable number.

2118884 is a deficient number, since it is larger than the sum of its proper divisors (1601224).

2118884 is a wasteful number, since it uses less digits than its factorization.

2118884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726 (or 1724 counting only the distinct ones).

The product of its digits is 4096, while the sum is 32.

The square root of 2118884 is about 1455.6386914341. The cubic root of 2118884 is about 128.4406201648.

The spelling of 2118884 in words is "two million, one hundred eighteen thousand, eight hundred eighty-four".