2540850040 has 16 divisors (see below), whose sum is σ = 5716912680. Its totient is φ = 1016340000.

The previous prime is 2540850029. The next prime is 2540850071. The reversal of 2540850040 is 400580452.

It is a junction number, because it is equal to n+sod(n) for n = 2540849990 and 2540850008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31760586 + ... + 31760665.

Almost surely, 2^2540850040 is an apocalyptic number.

2540850040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2540850040 is an abundant number, since it is smaller than the sum of its proper divisors (3176062640).

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

2540850040 is a wasteful number, since it uses less digits than its factorization.

2540850040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63521262 (or 63521258 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 2540850040 is about 50406.8451700759. The cubic root of 2540850040 is about 1364.5611778021.

The spelling of 2540850040 in words is "two billion, five hundred forty million, eight hundred fifty thousand, forty".