2942740 has 12 divisors (see below), whose sum is σ = 6179796. Its totient is φ = 1177088.

The previous prime is 2942729. The next prime is 2942741. The reversal of 2942740 is 472492.

2942740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1473796 + 1468944 = 1214^2 + 1212^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2942699 and 2942708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2942741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73549 + ... + 73588.

It is an arithmetic number, because the mean of its divisors is an integer number (514983).

2^2942740 is an apocalyptic number.

2942740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2942740 is an abundant number, since it is smaller than the sum of its proper divisors (3237056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2942740 is a wasteful number, since it uses less digits than its factorization.

2942740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147146 (or 147144 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2942740 is about 1715.4416340989. The cubic root of 2942740 is about 143.3014651824.

The spelling of 2942740 in words is "two million, nine hundred forty-two thousand, seven hundred forty".