2540442 has 32 divisors (see below), whose sum is σ = 5443200. Its totient is φ = 788480.

The previous prime is 2540441. The next prime is 2540443. The reversal of 2540442 is 2440452.

2540442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2540441) and next prime (2540443).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540441) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5434 + ... + 5882.

It is an arithmetic number, because the mean of its divisors is an integer number (170100).

2^2540442 is an apocalyptic number.

2540442 is an abundant number, since it is smaller than the sum of its proper divisors (2902758).

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

2540442 is a wasteful number, since it uses less digits than its factorization.

2540442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 2540442 is about 1593.8764067518. The cubic root of 2540442 is about 136.4488128056.

Adding to 2540442 its reverse (2440452), we get a palindrome (4980894).

The spelling of 2540442 in words is "two million, five hundred forty thousand, four hundred forty-two".