2540917812 has 12 divisors (see below), whose sum is σ = 5928808256. Its totient is φ = 846972600.

The previous prime is 2540917811. The next prime is 2540917877. The reversal of 2540917812 is 2187190452.

2540917812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540917811) 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, 105871564 + ... + 105871587.

Almost surely, 2^2540917812 is an apocalyptic number.

It is an amenable number.

2540917812 is an abundant number, since it is smaller than the sum of its proper divisors (3387890444).

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

2540917812 is a wasteful number, since it uses less digits than its factorization.

2540917812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211743158 (or 211743156 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 2540917812 is about 50407.5174155602. The cubic root of 2540917812 is about 1364.5733099910.

The spelling of 2540917812 in words is "two billion, five hundred forty million, nine hundred seventeen thousand, eight hundred twelve".