2724656 has 40 divisors (see below), whose sum is σ = 5852304. Its totient is φ = 1218560.

The previous prime is 2724653. The next prime is 2724661. The reversal of 2724656 is 6564272.

It is not an unprimeable number, because it can be changed into a prime (2724653) 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, 19820 + ... + 19956.

2^2724656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2724656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2926152).

2724656 is an abundant number, since it is smaller than the sum of its proper divisors (3127648).

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

2724656 is a wasteful number, since it uses less digits than its factorization.

2724656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 263 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 2724656 is about 1650.6532040377. The cubic root of 2724656 is about 139.6702443122.

The spelling of 2724656 in words is "two million, seven hundred twenty-four thousand, six hundred fifty-six".