2721448 has 16 divisors (see below), whose sum is σ = 5136480. Its totient is φ = 1351728.

The previous prime is 2721443. The next prime is 2721449. The reversal of 2721448 is 8441272.

It is not an unprimeable number, because it can be changed into a prime (2721443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261 + ... + 2347.

It is an arithmetic number, because the mean of its divisors is an integer number (321030).

2^2721448 is an apocalyptic number.

It is an amenable number.

2721448 is a deficient number, since it is larger than the sum of its proper divisors (2415032).

2721448 is a wasteful number, since it uses less digits than its factorization.

2721448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256 (or 2252 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 2721448 is about 1649.6811813196. The cubic root of 2721448 is about 139.6154070400.

The spelling of 2721448 in words is "two million, seven hundred twenty-one thousand, four hundred forty-eight".