2720784 has 40 divisors (see below), whose sum is σ = 7669152. Its totient is φ = 824320.

The previous prime is 2720747. The next prime is 2720789. The reversal of 2720784 is 4870272.

It is not an unprimeable number, because it can be changed into a prime (2720789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2049 + ... + 3104.

2^2720784 is an apocalyptic number.

2720784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2720784 is an abundant number, since it is smaller than the sum of its proper divisors (4948368).

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

2720784 is a wasteful number, since it uses less digits than its factorization.

2720784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5175 (or 5169 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 2720784 is about 1649.4799180348. The cubic root of 2720784 is about 139.6040512996.

The spelling of 2720784 in words is "two million, seven hundred twenty thousand, seven hundred eighty-four".