4382720 has 56 divisors (see below), whose sum is σ = 10616184. Its totient is φ = 1736704.

The previous prime is 4382713. The next prime is 4382723. The reversal of 4382720 is 272834.

4382720 is nontrivially palindromic in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 4382720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4382723) 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 3 ways as a sum of consecutive naturals, for example, 40907 + ... + 41013.

Almost surely, 2^4382720 is an apocalyptic number.

4382720 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 4382720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5308092).

4382720 is an abundant number, since it is smaller than the sum of its proper divisors (6233464).

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

4382720 is an equidigital number, since it uses as much as digits as its factorization.

4382720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 4382720 is about 2093.4946859259. The cubic root of 4382720 is about 163.6494594831.

The spelling of 4382720 in words is "four million, three hundred eighty-two thousand, seven hundred twenty".