2040543 has 12 divisors (see below), whose sum is σ = 3102840. Its totient is φ = 1288656.

The previous prime is 2040541. The next prime is 2040551. The reversal of 2040543 is 3450402.

It is a happy number.

It is not a de Polignac number, because 2040543 - 2¹ = 2040541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5796 + ... + 6137.

It is an arithmetic number, because the mean of its divisors is an integer number (258570).

2^2040543 is an apocalyptic number.

2040543 is a deficient number, since it is larger than the sum of its proper divisors (1062297).

2040543 is a wasteful number, since it uses less digits than its factorization.

2040543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11958 (or 11955 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2040543 is about 1428.4757610824. The cubic root of 2040543 is about 126.8377658541.

Adding to 2040543 its reverse (3450402), we get a palindrome (5490945).

The spelling of 2040543 in words is "two million, forty thousand, five hundred forty-three".