8382720 has 144 divisors (see below), whose sum is σ = 27961920. Its totient is φ = 2138112.

The previous prime is 8382719. The next prime is 8382727. The reversal of 8382720 is 272838.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8382727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142051 + ... + 142109.

It is an arithmetic number, because the mean of its divisors is an integer number (194180).

Almost surely, 2^8382720 is an apocalyptic number.

8382720 is a gapful number since it is divisible by the number (80) 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 8382720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13980960).

8382720 is an abundant number, since it is smaller than the sum of its proper divisors (19579200).

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

8382720 is a wasteful number, since it uses less digits than its factorization.

8382720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 8382720 is about 2895.2927313141. The cubic root of 8382720 is about 203.1397841705.

The spelling of 8382720 in words is "eight million, three hundred eighty-two thousand, seven hundred twenty".