3541728 has 48 divisors (see below), whose sum is σ = 9434880. Its totient is φ = 1163136.

The previous prime is 3541723. The next prime is 3541739. The reversal of 3541728 is 8271453.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 3541695 and 3541704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3541723) 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, 7351 + ... + 7817.

It is an arithmetic number, because the mean of its divisors is an integer number (196560).

Almost surely, 2^3541728 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 3541728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4717440).

3541728 is an abundant number, since it is smaller than the sum of its proper divisors (5893152).

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

3541728 is a wasteful number, since it uses less digits than its factorization.

3541728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559 (or 551 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 3541728 is about 1881.9479270160. The cubic root of 3541728 is about 152.4304511316.

The spelling of 3541728 in words is "three million, five hundred forty-one thousand, seven hundred twenty-eight".