2540645422 has 16 divisors (see below), whose sum is σ = 4360043232. Its totient is φ = 1087685280.

The previous prime is 2540645417. The next prime is 2540645431. The reversal of 2540645422 is 2245460452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83253 + ... + 109600.

It is an arithmetic number, because the mean of its divisors is an integer number (272502702).

Almost surely, 2^2540645422 is an apocalyptic number.

2540645422 is a deficient number, since it is larger than the sum of its proper divisors (1819397810).

2540645422 is a wasteful number, since it uses less digits than its factorization.

2540645422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193803.

The product of its (nonzero) digits is 76800, while the sum is 34.

The square root of 2540645422 is about 50404.8154643978. The cubic root of 2540645422 is about 1364.5245468492.

The spelling of 2540645422 in words is "two billion, five hundred forty million, six hundred forty-five thousand, four hundred twenty-two".