2040542 has 8 divisors (see below), whose sum is σ = 3498096. Its totient is φ = 874512.

The previous prime is 2040541. The next prime is 2040551. The reversal of 2040542 is 2450402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2040542.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72863 + ... + 72890.

It is an arithmetic number, because the mean of its divisors is an integer number (437262).

2^2040542 is an apocalyptic number.

2040542 is a deficient number, since it is larger than the sum of its proper divisors (1457554).

2040542 is a wasteful number, since it uses less digits than its factorization.

2040542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145762.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2040542 is about 1428.4754110589. The cubic root of 2040542 is about 126.8377451345.

Adding to 2040542 its reverse (2450402), we get a palindrome (4490944).

The spelling of 2040542 in words is "two million, forty thousand, five hundred forty-two".