2943540 has 120 divisors (see below), whose sum is σ = 9757440. Its totient is φ = 741312.

The previous prime is 2943539. The next prime is 2943541. The reversal of 2943540 is 453492.

2943540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2943539) and next prime (2943541).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2943541) 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 39 ways as a sum of consecutive naturals, for example, 37221 + ... + 37299.

It is an arithmetic number, because the mean of its divisors is an integer number (81312).

2^2943540 is an apocalyptic number.

2943540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2943540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4878720).

2943540 is an abundant number, since it is smaller than the sum of its proper divisors (6813900).

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

2943540 is a wasteful number, since it uses less digits than its factorization.

2943540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2943540 is about 1715.6747943594. The cubic root of 2943540 is about 143.3144497688.

The spelling of 2943540 in words is "two million, nine hundred forty-three thousand, five hundred forty".