3481728 has 32 divisors (see below), whose sum is σ = 9249360. Its totient is φ = 1160448.

The previous prime is 3481721. The next prime is 3481741. The reversal of 3481728 is 8271843.

It is a tau number, because it is divible by the number of its divisors (32).

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (3481721) 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, 4150 + ... + 4917.

Almost surely, 2^3481728 is an apocalyptic number.

It is an amenable number.

3481728 is an abundant number, since it is smaller than the sum of its proper divisors (5767632).

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

3481728 is an equidigital number, since it uses as much as digits as its factorization.

3481728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9084 (or 9072 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 3481728 is about 1865.9389057523. The cubic root of 3481728 is about 151.5647753157.

The spelling of 3481728 in words is "three million, four hundred eighty-one thousand, seven hundred twenty-eight".