3320720 has 80 divisors (see below), whose sum is σ = 8666112. Its totient is φ = 1175040.

The previous prime is 3320699. The next prime is 3320749. The reversal of 3320720 is 270233.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×3320720² = 22054362636800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32189 + ... + 32291.

Almost surely, 2^3320720 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 3320720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4333056).

3320720 is an abundant number, since it is smaller than the sum of its proper divisors (5345392).

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

3320720 is a wasteful number, since it uses less digits than its factorization.

3320720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 3320720 is about 1822.2842807861. The cubic root of 3320720 is about 149.1915018867.

Adding to 3320720 its reverse (270233), we get a palindrome (3590953).

The spelling of 3320720 in words is "three million, three hundred twenty thousand, seven hundred twenty".