2540323330 has 16 divisors (see below), whose sum is σ = 4576185720. Its totient is φ = 1015328512.

The previous prime is 2540323309. The next prime is 2540323333. The reversal of 2540323330 is 333230452.

It can be written as a sum of positive squares in 4 ways, for example, as 2479342849 + 60980481 = 49793^2 + 7809^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2540323295 and 2540323304.

It is not an unprimeable number, because it can be changed into a prime (2540323333) 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, 86695 + ... + 112234.

Almost surely, 2^2540323330 is an apocalyptic number.

2540323330 is a deficient number, since it is larger than the sum of its proper divisors (2035862390).

2540323330 is a wasteful number, since it uses less digits than its factorization.

2540323330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200213.

The product of its (nonzero) digits is 6480, while the sum is 25.

The square root of 2540323330 is about 50401.6203112559. The cubic root of 2540323330 is about 1364.4668815790.

Adding to 2540323330 its reverse (333230452), we get a palindrome (2873553782).

The spelling of 2540323330 in words is "two billion, five hundred forty million, three hundred twenty-three thousand, three hundred thirty".