3722160640 has 160 divisors (see below), whose sum is σ = 9819817920. Its totient is φ = 1341849600.

The previous prime is 3722160601. The next prime is 3722160661. The reversal of 3722160640 is 460612273.

3722160640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (160).

It is a nialpdrome in base 16.

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, 3688456 + ... + 3689464.

It is an arithmetic number, because the mean of its divisors is an integer number (61373862).

Almost surely, 2^3722160640 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 3722160640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4909908960).

3722160640 is an abundant number, since it is smaller than the sum of its proper divisors (6097657280).

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

3722160640 is a wasteful number, since it uses less digits than its factorization.

3722160640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 3722160640 is about 61009.5127008895. The cubic root of 3722160640 is about 1549.7621057028.

The spelling of 3722160640 in words is "three billion, seven hundred twenty-two million, one hundred sixty thousand, six hundred forty".