2728832 has 16 divisors (see below), whose sum is σ = 5436600. Its totient is φ = 1364352.

The previous prime is 2728819. The next prime is 2728841. The reversal of 2728832 is 2388272.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10532 + ... + 10787.

2^2728832 is an apocalyptic number.

It is an amenable number.

2728832 is a deficient number, since it is larger than the sum of its proper divisors (2707768).

2728832 is an equidigital number, since it uses as much as digits as its factorization.

2728832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21333 (or 21321 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 2728832 is about 1651.9176734934. The cubic root of 2728832 is about 139.7415640446.

The spelling of 2728832 in words is "two million, seven hundred twenty-eight thousand, eight hundred thirty-two".