2720328 has 32 divisors (see below), whose sum is σ = 7324800. Its totient is φ = 836928.

The previous prime is 2720321. The next prime is 2720329. The reversal of 2720328 is 8230272.

2720328 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2720298 and 2720307.

It is not an unprimeable number, because it can be changed into a prime (2720321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4048 + ... + 4671.

It is an arithmetic number, because the mean of its divisors is an integer number (228900).

2^2720328 is an apocalyptic number.

It is an amenable number.

2720328 is an abundant number, since it is smaller than the sum of its proper divisors (4604472).

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

2720328 is a wasteful number, since it uses less digits than its factorization.

2720328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8741 (or 8737 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 2720328 is about 1649.3416868557. The cubic root of 2720328 is about 139.5962517090.

The spelling of 2720328 in words is "two million, seven hundred twenty thousand, three hundred twenty-eight".