2943235840 has 144 divisors (see below), whose sum is σ = 7649056800. Its totient is φ = 1080688640.

The previous prime is 2943235817. The next prime is 2943235853. The reversal of 2943235840 is 485323492.

2943235840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 2943235793 and 2943235802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 890511 + ... + 893809.

It is an arithmetic number, because the mean of its divisors is an integer number (53118450).

Almost surely, 2^2943235840 is an apocalyptic number.

2943235840 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 2943235840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3824528400).

2943235840 is an abundant number, since it is smaller than the sum of its proper divisors (4705820960).

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

2943235840 is a wasteful number, since it uses less digits than its factorization.

2943235840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378 (or 3364 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 2943235840 is about 54251.5975801635. The cubic root of 2943235840 is about 1433.0951330625.

The spelling of 2943235840 in words is "two billion, nine hundred forty-three million, two hundred thirty-five thousand, eight hundred forty".