2540843198 has 16 divisors (see below), whose sum is σ = 3822390000. Its totient is φ = 1266720000.

The previous prime is 2540843159. The next prime is 2540843213. The reversal of 2540843198 is 8913480452.

It is a happy number.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 1750373 + ... + 1751823.

It is an arithmetic number, because the mean of its divisors is an integer number (238899375).

Almost surely, 2^2540843198 is an apocalyptic number.

2540843198 is a deficient number, since it is larger than the sum of its proper divisors (1281546802).

2540843198 is a wasteful number, since it uses less digits than its factorization.

2540843198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 2540843198 is about 50406.7773022636. Note that the first 3 decimals coincide. The cubic root of 2540843198 is about 1364.5599529711.

The spelling of 2540843198 in words is "two billion, five hundred forty million, eight hundred forty-three thousand, one hundred ninety-eight".