2540222064 has 30 divisors (see below), whose sum is σ = 7109094096. Its totient is φ = 846740640.

The previous prime is 2540222063. The next prime is 2540222071. The reversal of 2540222064 is 4602220452.

It is a happy number.

2540222064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540222063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8820072 + ... + 8820359.

Almost surely, 2^2540222064 is an apocalyptic number.

2540222064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2540222064 is an abundant number, since it is smaller than the sum of its proper divisors (4568872032).

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

2540222064 is a wasteful number, since it uses less digits than its factorization.

2540222064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17640445 (or 17640436 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 2540222064 is about 50400.6157105248. The cubic root of 2540222064 is about 1364.4487505616.

The spelling of 2540222064 in words is "two billion, five hundred forty million, two hundred twenty-two thousand, sixty-four".