3160640 has 112 divisors (see below), whose sum is σ = 9217152. Its totient is φ = 1007616.

The previous prime is 3160621. The next prime is 3160643. The reversal of 3160640 is 460613.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (3160643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38039 + ... + 38121.

It is an arithmetic number, because the mean of its divisors is an integer number (82296).

Almost surely, 2^3160640 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 3160640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4608576).

3160640 is an abundant number, since it is smaller than the sum of its proper divisors (6056512).

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

3160640 is a wasteful number, since it uses less digits than its factorization.

3160640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 3160640 is about 1777.8188884136. The cubic root of 3160640 is about 146.7545845698.

The spelling of 3160640 in words is "three million, one hundred sixty thousand, six hundred forty".