2081442 has 48 divisors (see below), whose sum is σ = 4749696. Its totient is φ = 607200.

The previous prime is 2081437. The next prime is 2081467. The reversal of 2081442 is 2441802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34092 + ... + 34152.

It is an arithmetic number, because the mean of its divisors is an integer number (98952).

2^2081442 is an apocalyptic number.

2081442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2081442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2374848).

2081442 is an abundant number, since it is smaller than the sum of its proper divisors (2668254).

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

2081442 is a wasteful number, since it uses less digits than its factorization.

2081442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 2081442 is about 1442.7203471221. The cubic root of 2081442 is about 127.6795777886.

The spelling of 2081442 in words is "two million, eighty-one thousand, four hundred forty-two".