2540417850 has 96 divisors (see below), whose sum is σ = 7304711040. Its totient is φ = 647982720.

The previous prime is 2540417849. The next prime is 2540417879. The reversal of 2540417850 is 587140452.

2540417850 is a `hidden beast` number, since 2 + 540 + 41 + 78 + 5 + 0 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9859 + ... + 71958.

It is an arithmetic number, because the mean of its divisors is an integer number (76090740).

Almost surely, 2^2540417850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2540417850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3652355520).

2540417850 is an abundant number, since it is smaller than the sum of its proper divisors (4764293190).

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

2540417850 is a wasteful number, since it uses less digits than its factorization.

2540417850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81861 (or 81850 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 2540417850 is about 50402.5579708014. The cubic root of 2540417850 is about 1364.4838043343.

The spelling of 2540417850 in words is "two billion, five hundred forty million, four hundred seventeen thousand, eight hundred fifty".