2185983842 has 8 divisors (see below), whose sum is σ = 3747400896. Its totient is φ = 936850212.

The previous prime is 2185983829. The next prime is 2185983847. The reversal of 2185983842 is 2483895812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2185983847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78070838 + ... + 78070865.

It is an arithmetic number, because the mean of its divisors is an integer number (468425112).

Almost surely, 2^2185983842 is an apocalyptic number.

2185983842 is a deficient number, since it is larger than the sum of its proper divisors (1561417054).

2185983842 is a wasteful number, since it uses less digits than its factorization.

2185983842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156141712.

The product of its digits is 1105920, while the sum is 50.

The square root of 2185983842 is about 46754.5061143843. The cubic root of 2185983842 is about 1297.8235459954.

The spelling of 2185983842 in words is "two billion, one hundred eighty-five million, nine hundred eighty-three thousand, eight hundred forty-two".