2943378 has 20 divisors (see below), whose sum is σ = 6595710. Its totient is φ = 981072.

The previous prime is 2943373. The next prime is 2943389. The reversal of 2943378 is 8733492.

2943378 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 only one way, i.e., 2832489 + 110889 = 1683^2 + 333^2 .

It is a d-powerful number, because it can be written as 2¹⁹ + 9 + 4⁹ + 3⁶ + 3¹⁰ + 7 + 8⁷ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2943371) 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 9 ways as a sum of consecutive naturals, for example, 8923 + ... + 9246.

2^2943378 is an apocalyptic number.

2943378 is an abundant number, since it is smaller than the sum of its proper divisors (3652332).

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

2943378 is a wasteful number, since it uses less digits than its factorization.

2943378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18183 (or 18174 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 2943378 is about 1715.6275819653. The cubic root of 2943378 is about 143.3118205800.

It can be divided in two parts, 2943 and 378, that added together give a triangular number (3321 = T₈₁).

The spelling of 2943378 in words is "two million, nine hundred forty-three thousand, three hundred seventy-eight".