2164842 has 24 divisors (see below), whose sum is σ = 4732416. Its totient is φ = 715176.

The previous prime is 2164817. The next prime is 2164843. The reversal of 2164842 is 2484612.

It is not an unprimeable number, because it can be changed into a prime (2164843) 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 11 ways as a sum of consecutive naturals, for example, 1813 + ... + 2759.

It is an arithmetic number, because the mean of its divisors is an integer number (197184).

2^2164842 is an apocalyptic number.

2164842 is an abundant number, since it is smaller than the sum of its proper divisors (2567574).

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

2164842 is a wasteful number, since it uses less digits than its factorization.

2164842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082 (or 1079 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 2164842 is about 1471.3402053910. The cubic root of 2164842 is about 129.3625998057.

The spelling of 2164842 in words is "two million, one hundred sixty-four thousand, eight hundred forty-two".