2540768 has 12 divisors (see below), whose sum is σ = 5002200. Its totient is φ = 1270368.

The previous prime is 2540761. The next prime is 2540771. The reversal of 2540768 is 8670452.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 79399 = 2540768 / (2 + 5 + 4 + 0 + 7 + 6 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39668 + ... + 39731.

It is an arithmetic number, because the mean of its divisors is an integer number (416850).

2^2540768 is an apocalyptic number.

It is an amenable number.

2540768 is a deficient number, since it is larger than the sum of its proper divisors (2461432).

2540768 is an equidigital number, since it uses as much as digits as its factorization.

2540768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79409 (or 79401 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 2540768 is about 1593.9786698698. The cubic root of 2540768 is about 136.4546491142.

The spelling of 2540768 in words is "two million, five hundred forty thousand, seven hundred sixty-eight".