2640516 has 24 divisors (see below), whose sum is σ = 6190464. Its totient is φ = 876000.

The previous prime is 2640511. The next prime is 2640527. The reversal of 2640516 is 6150462.

It is not an unprimeable number, because it can be changed into a prime (2640511) 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 7 ways as a sum of consecutive naturals, for example, 3141 + ... + 3891.

It is an arithmetic number, because the mean of its divisors is an integer number (257936).

2^2640516 is an apocalyptic number.

It is an amenable number.

2640516 is an abundant number, since it is smaller than the sum of its proper divisors (3549948).

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

2640516 is a wasteful number, since it uses less digits than its factorization.

2640516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2640516 is about 1624.9664611924. The cubic root of 2640516 is about 138.2174685045.

Adding to 2640516 its reverse (6150462), we get a palindrome (8790978).

The spelling of 2640516 in words is "two million, six hundred forty thousand, five hundred sixteen".