2540788 has 6 divisors (see below), whose sum is σ = 4446386. Its totient is φ = 1270392.

The previous prime is 2540771. The next prime is 2540789. The reversal of 2540788 is 8870452.

2540788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2521744 + 19044 = 1588^2 + 138^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540789) 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 as a sum of consecutive naturals, namely, 317595 + ... + 317602.

2^2540788 is an apocalyptic number.

It is an amenable number.

2540788 is a deficient number, since it is larger than the sum of its proper divisors (1905598).

2540788 is a wasteful number, since it uses less digits than its factorization.

2540788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635201 (or 635199 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 2540788 is about 1593.9849434672. The cubic root of 2540788 is about 136.4550071537.

The spelling of 2540788 in words is "two million, five hundred forty thousand, seven hundred eighty-eight".