2120042849 has 8 divisors (see below), whose sum is σ = 2191123200. Its totient is φ = 2049130800.

The previous prime is 2120042843. The next prime is 2120042887. The reversal of 2120042849 is 9482400212.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2120042849 - 2¹⁶ = 2119977313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120042843) by changing a digit.

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, 16199 + ... + 67100.

It is an arithmetic number, because the mean of its divisors is an integer number (273890400).

Almost surely, 2^2120042849 is an apocalyptic number.

It is an amenable number.

2120042849 is a deficient number, since it is larger than the sum of its proper divisors (71080351).

2120042849 is an equidigital number, since it uses as much as digits as its factorization.

2120042849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84151.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 2120042849 is about 46043.9230409399. The cubic root of 2120042849 is about 1284.6403125570.

The spelling of 2120042849 in words is "two billion, one hundred twenty million, forty-two thousand, eight hundred forty-nine".