2720940 has 48 divisors (see below), whose sum is σ = 7711200. Its totient is φ = 716800.

The previous prime is 2720917. The next prime is 2720953. The reversal of 2720940 is 490272.

2720940 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2720940.

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, 5836 + ... + 6284.

It is an arithmetic number, because the mean of its divisors is an integer number (160650).

2^2720940 is an apocalyptic number.

2720940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

2720940 is the 1347-th pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2720940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3855600).

2720940 is an abundant number, since it is smaller than the sum of its proper divisors (4990260).

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

2720940 is a wasteful number, since it uses less digits than its factorization.

2720940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2720940 is about 1649.5272049894. The cubic root of 2720940 is about 139.6067193806.

The spelling of 2720940 in words is "two million, seven hundred twenty thousand, nine hundred forty".