2942120789 has 8 divisors (see below), whose sum is σ = 3101000760. Its totient is φ = 2787069376.

The previous prime is 2942120767. The next prime is 2942120801. The reversal of 2942120789 is 9870212492.

It can be written as a sum of positive squares in 4 ways, for example, as 160402225 + 2781718564 = 12665^2 + 52742^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2942120789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2942120719) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 955562 + ... + 958635.

It is an arithmetic number, because the mean of its divisors is an integer number (387625095).

Almost surely, 2^2942120789 is an apocalyptic number.

2942120789 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2942120789 is a deficient number, since it is larger than the sum of its proper divisors (158879971).

2942120789 is a wasteful number, since it uses less digits than its factorization.

2942120789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914279.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 2942120789 is about 54241.3199415353. The cubic root of 2942120789 is about 1432.9141331824.

The spelling of 2942120789 in words is "two billion, nine hundred forty-two million, one hundred twenty thousand, seven hundred eighty-nine".