2540040288 has 24 divisors (see below), whose sum is σ = 6667606008. Its totient is φ = 846680064.

The previous prime is 2540040281. The next prime is 2540040299. The reversal of 2540040288 is 8820400452.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540040281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13229281 + ... + 13229472.

It is an arithmetic number, because the mean of its divisors is an integer number (277816917).

Almost surely, 2^2540040288 is an apocalyptic number.

It is an amenable number.

2540040288 is an abundant number, since it is smaller than the sum of its proper divisors (4127565720).

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

2540040288 is a wasteful number, since it uses less digits than its factorization.

2540040288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26458766 (or 26458758 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 2540040288 is about 50398.8123669596. The cubic root of 2540040288 is about 1364.4162035446.

The spelling of 2540040288 in words is "two billion, five hundred forty million, forty thousand, two hundred eighty-eight".