3306720 has 72 divisors (see below), whose sum is σ = 10543176. Its totient is φ = 871168.

The previous prime is 3306713. The next prime is 3306731. The reversal of 3306720 is 276033.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39799 + ... + 39881.

It is an arithmetic number, because the mean of its divisors is an integer number (146433).

Almost surely, 2^3306720 is an apocalyptic number.

3306720 is a gapful number since it is divisible by the number (30) 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 3306720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5271588).

3306720 is an abundant number, since it is smaller than the sum of its proper divisors (7236456).

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

3306720 is an equidigital number, since it uses as much as digits as its factorization.

3306720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 3306720 is about 1818.4388909172. The cubic root of 3306720 is about 148.9815450920.

The spelling of 3306720 in words is "three million, three hundred six thousand, seven hundred twenty".