2081494 has 4 divisors (see below), whose sum is σ = 3122244. Its totient is φ = 1040746.

The previous prime is 2081491. The next prime is 2081537. The reversal of 2081494 is 4941802.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520372 + ... + 520375.

It is an arithmetic number, because the mean of its divisors is an integer number (780561).

2^2081494 is an apocalyptic number.

2081494 is a deficient number, since it is larger than the sum of its proper divisors (1040750).

2081494 is a wasteful number, since it uses less digits than its factorization.

2081494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040749.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 2081494 is about 1442.7383685201. The cubic root of 2081494 is about 127.6806410391.

The spelling of 2081494 in words is "two million, eighty-one thousand, four hundred ninety-four".