2942939 has 8 divisors (see below), whose sum is σ = 3039120. Its totient is φ = 2848000.

The previous prime is 2942909. The next prime is 2942959. The reversal of 2942939 is 9392492.

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 2942939 - 2¹² = 2938843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2942909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7139 + ... + 7539.

It is an arithmetic number, because the mean of its divisors is an integer number (379890).

2^2942939 is an apocalyptic number.

2942939 is a deficient number, since it is larger than the sum of its proper divisors (96181).

2942939 is a wasteful number, since it uses less digits than its factorization.

2942939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621.

The product of its digits is 34992, while the sum is 38.

The square root of 2942939 is about 1715.4996356747. The cubic root of 2942939 is about 143.3046953181.

The spelling of 2942939 in words is "two million, nine hundred forty-two thousand, nine hundred thirty-nine".