2120384 has 28 divisors (see below), whose sum is σ = 4809744. Its totient is φ = 908544.

The previous prime is 2120383. The next prime is 2120387. The reversal of 2120384 is 4830212.

It is a tau number, because it is divible by the number of its divisors (28).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2120383) 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 3 ways as a sum of consecutive naturals, for example, 1919 + ... + 2814.

2^2120384 is an apocalyptic number.

It is an amenable number.

2120384 is an abundant number, since it is smaller than the sum of its proper divisors (2689360).

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

2120384 is an equidigital number, since it uses as much as digits as its factorization.

2120384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4752 (or 4742 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2120384 is about 1456.1538380267. The cubic root of 2120384 is about 128.4709215696.

Adding to 2120384 its reverse (4830212), we get a palindrome (6950596).

The spelling of 2120384 in words is "two million, one hundred twenty thousand, three hundred eighty-four".