2943429840 has 480 divisors, whose sum is σ = 11639671680. Its totient is φ = 685283328.

The previous prime is 2943429833. The next prime is 2943429847. The reversal of 2943429840 is 489243492.

It is a happy number.

2943429840 is a `hidden beast` number, since 294 + 34 + 298 + 40 = 666.

2943429840 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 (2943429833) and next prime (2943429847).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2943429847) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4801374 + ... + 4801986.

It is an arithmetic number, because the mean of its divisors is an integer number (24249316).

Almost surely, 2^2943429840 is an apocalyptic number.

2943429840 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 2943429840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5819835840).

2943429840 is an abundant number, since it is smaller than the sum of its proper divisors (8696241840).

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

2943429840 is a wasteful number, since it uses less digits than its factorization.

2943429840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 2943429840 is about 54253.3855164818. The cubic root of 2943429840 is about 1433.1266193090.

The spelling of 2943429840 in words is "two billion, nine hundred forty-three million, four hundred twenty-nine thousand, eight hundred forty".