4391680 has 72 divisors (see below), whose sum is σ = 10890432. Its totient is φ = 1695744.

The previous prime is 4391671. The next prime is 4391683. The reversal of 4391680 is 861934.

It is not an unprimeable number, because it can be changed into a prime (4391683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60124 + ... + 60196.

It is an arithmetic number, because the mean of its divisors is an integer number (151256).

Almost surely, 2^4391680 is an apocalyptic number.

4391680 is a gapful number since it is divisible by the number (40) 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 4391680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5445216).

4391680 is an abundant number, since it is smaller than the sum of its proper divisors (6498752).

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

4391680 is an equidigital number, since it uses as much as digits as its factorization.

4391680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 4391680 is about 2095.6335557535. The cubic root of 4391680 is about 163.7609048154.

The spelling of 4391680 in words is "four million, three hundred ninety-one thousand, six hundred eighty".