2540516 has 36 divisors (see below), whose sum is σ = 5083260. Its totient is φ = 1108800.

The previous prime is 2540513. The next prime is 2540519. The reversal of 2540516 is 6150452.

2540516 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 (2540513) and next prime (2540519).

It can be written as a sum of positive squares in 2 ways, for example, as 495616 + 2044900 = 704^2 + 1430^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2540491 and 2540500.

It is not an unprimeable number, because it can be changed into a prime (2540513) 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 11 ways as a sum of consecutive naturals, for example, 13946 + ... + 14126.

2^2540516 is an apocalyptic number.

It is an amenable number.

2540516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

2540516 is a wasteful number, since it uses less digits than its factorization.

2540516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2540516 is about 1593.8996204278. The cubic root of 2540516 is about 136.4501376556.

Adding to 2540516 its reverse (6150452), we get a palindrome (8690968).

The spelling of 2540516 in words is "two million, five hundred forty thousand, five hundred sixteen".