2720880 has 60 divisors (see below), whose sum is σ = 9140040. Its totient is φ = 725376.

The previous prime is 2720849. The next prime is 2720881. The reversal of 2720880 is 880272.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1170 + ... + 2609.

It is an arithmetic number, because the mean of its divisors is an integer number (152334).

2^2720880 is an apocalyptic number.

2720880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2720880 is an abundant number, since it is smaller than the sum of its proper divisors (6419160).

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

2720880 is a wasteful number, since it uses less digits than its factorization.

2720880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3798 (or 3789 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 2720880 is about 1649.5090178596. The cubic root of 2720880 is about 139.6056932077.

It can be divided in two parts, 2720 and 880, that added together give a square (3600 = 60²).

The spelling of 2720880 in words is "two million, seven hundred twenty thousand, eight hundred eighty".