2540045320 has 32 divisors (see below), whose sum is σ = 5716998720. Its totient is φ = 1015680960.

The previous prime is 2540045311. The next prime is 2540045323. The reversal of 2540045320 is 235400452.

It is not an unprimeable number, because it can be changed into a prime (2540045323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137005 + ... + 154435.

It is an arithmetic number, because the mean of its divisors is an integer number (178656210).

Almost surely, 2^2540045320 is an apocalyptic number.

2540045320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2540045320 is an abundant number, since it is smaller than the sum of its proper divisors (3176953400).

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

2540045320 is a wasteful number, since it uses less digits than its factorization.

2540045320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21085 (or 21081 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 2540045320 is about 50398.8622887462. The cubic root of 2540045320 is about 1364.4171045457.

Adding to 2540045320 its reverse (235400452), we get a palindrome (2775445772).

The spelling of 2540045320 in words is "two billion, five hundred forty million, forty-five thousand, three hundred twenty".