2118384 has 60 divisors (see below), whose sum is σ = 6074016. Its totient is φ = 688896.

The previous prime is 2118377. The next prime is 2118397. The reversal of 2118384 is 4838112.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6612 + ... + 6924.

2^2118384 is an apocalyptic number.

2118384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2118384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3037008).

2118384 is an abundant number, since it is smaller than the sum of its proper divisors (3955632).

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

2118384 is a wasteful number, since it uses less digits than its factorization.

2118384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 365 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 2118384 is about 1455.4669353853. The cubic root of 2118384 is about 128.4305165187.

The spelling of 2118384 in words is "two million, one hundred eighteen thousand, three hundred eighty-four".