2943742 has 8 divisors (see below), whose sum is σ = 4447800. Its totient is φ = 1461144.

The previous prime is 2943739. The next prime is 2943749. The reversal of 2943742 is 2473492.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2943749) 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, 5017 + ... + 5572.

It is an arithmetic number, because the mean of its divisors is an integer number (555975).

2^2943742 is an apocalyptic number.

2943742 is a deficient number, since it is larger than the sum of its proper divisors (1504058).

2943742 is a wasteful number, since it uses less digits than its factorization.

2943742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10730.

The product of its digits is 12096, while the sum is 31.

The square root of 2943742 is about 1715.7336623148. The cubic root of 2943742 is about 143.3177280048.

The spelling of 2943742 in words is "two million, nine hundred forty-three thousand, seven hundred forty-two".