2540666724 has 24 divisors (see below), whose sum is σ = 6040077120. Its totient is φ = 830909664.

The previous prime is 2540666707. The next prime is 2540666729. The reversal of 2540666724 is 4276660452.

It is not an unprimeable number, because it can be changed into a prime (2540666729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1996744 + ... + 1998015.

It is an arithmetic number, because the mean of its divisors is an integer number (251669880).

Almost surely, 2^2540666724 is an apocalyptic number.

It is an amenable number.

2540666724 is an abundant number, since it is smaller than the sum of its proper divisors (3499410396).

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

2540666724 is a wasteful number, since it uses less digits than its factorization.

2540666724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3994819 (or 3994817 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 42.

The square root of 2540666724 is about 50405.0267731305. The cubic root of 2540666724 is about 1364.5283604498.

The spelling of 2540666724 in words is "two billion, five hundred forty million, six hundred sixty-six thousand, seven hundred twenty-four".