2540036 has 12 divisors (see below), whose sum is σ = 4468800. Its totient is φ = 1263240.

The previous prime is 2540033. The next prime is 2540071. The reversal of 2540036 is 6300452.

It is not an unprimeable number, because it can be changed into a prime (2540033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800 + ... + 2391.

It is an arithmetic number, because the mean of its divisors is an integer number (372400).

2^2540036 is an apocalyptic number.

It is an amenable number.

2540036 is a deficient number, since it is larger than the sum of its proper divisors (1928764).

2540036 is a wasteful number, since it uses less digits than its factorization.

2540036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3394 (or 3392 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2540036 is about 1593.7490392154. The cubic root of 2540036 is about 136.4415435759.

Adding to 2540036 its reverse (6300452), we get a palindrome (8840488).

The spelling of 2540036 in words is "two million, five hundred forty thousand, thirty-six".