2540704328 has 36 divisors (see below), whose sum is σ = 4851188835. Its totient is φ = 1247470000.

The previous prime is 2540704307. The next prime is 2540704363. The reversal of 2540704328 is 8234070452.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 1270352164 + 1270352164 = 35642^2 + 35642^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=35642.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10122203 + ... + 10122453.

Almost surely, 2^2540704328 is an apocalyptic number.

It is an amenable number.

2540704328 is a deficient number, since it is larger than the sum of its proper divisors (2310484507).

2540704328 is an frugal number, since it uses more digits than its factorization.

2540704328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 2540704328 is about 50405.3997901019. The cubic root of 2540704328 is about 1364.5350924716.

The spelling of 2540704328 in words is "two billion, five hundred forty million, seven hundred four thousand, three hundred twenty-eight".