2721248 has 24 divisors (see below), whose sum is σ = 5394312. Its totient is φ = 1351296.

The previous prime is 2721247. The next prime is 2721259. The reversal of 2721248 is 8421272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721247) 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, 8711 + ... + 9017.

It is an arithmetic number, because the mean of its divisors is an integer number (224763).

2^2721248 is an apocalyptic number.

It is an amenable number.

2721248 is a deficient number, since it is larger than the sum of its proper divisors (2673064).

2721248 is a wasteful number, since it uses less digits than its factorization.

2721248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594 (or 586 counting only the distinct ones).

The product of its digits is 1792, while the sum is 26.

The square root of 2721248 is about 1649.6205624325. The cubic root of 2721248 is about 139.6119868307.

The spelling of 2721248 in words is "two million, seven hundred twenty-one thousand, two hundred forty-eight".