2081439 has 6 divisors (see below), whose sum is σ = 3006536. Its totient is φ = 1387620.

The previous prime is 2081437. The next prime is 2081467. The reversal of 2081439 is 9341802.

It is not a de Polignac number, because 2081439 - 2¹ = 2081437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115627 + ... + 115644.

2^2081439 is an apocalyptic number.

2081439 is a deficient number, since it is larger than the sum of its proper divisors (925097).

2081439 is a wasteful number, since it uses less digits than its factorization.

2081439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231277 (or 231274 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2081439 is about 1442.7193074192. The cubic root of 2081439 is about 127.6795164467.

The spelling of 2081439 in words is "two million, eighty-one thousand, four hundred thirty-nine".