3443840064 has 140 divisors (see below), whose sum is σ = 11667118144. Its totient is φ = 983943936.

The previous prime is 3443840051. The next prime is 3443840069. The reversal of 3443840064 is 4600483443.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3443840069) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11164 + ... + 83739.

Almost surely, 2^3443840064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3443840064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5833559072).

3443840064 is an abundant number, since it is smaller than the sum of its proper divisors (8223278080).

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

3443840064 is an equidigital number, since it uses as much as digits as its factorization.

3443840064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94934 (or 94915 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The square root of 3443840064 is about 58684.2403375898. The cubic root of 3443840064 is about 1510.1299632303.

The spelling of 3443840064 in words is "three billion, four hundred forty-three million, eight hundred forty thousand, sixty-four".