3128741 has 16 divisors (see below), whose sum is σ = 3939840. Its totient is φ = 2413680.

The previous prime is 3128729. The next prime is 3128747. The reversal of 3128741 is 1478213.

It is a cyclic number.

It is not a de Polignac number, because 3128741 - 2¹⁴ = 3112357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3128741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13670 + ... + 13896.

It is an arithmetic number, because the mean of its divisors is an integer number (246240).

Almost surely, 2^3128741 is an apocalyptic number.

It is an amenable number.

3128741 is a deficient number, since it is larger than the sum of its proper divisors (811099).

3128741 is a wasteful number, since it uses less digits than its factorization.

3128741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424.

The product of its digits is 1344, while the sum is 26.

The square root of 3128741 is about 1768.8247510706. The cubic root of 3128741 is about 146.2592036480.

The spelling of 3128741 in words is "three million, one hundred twenty-eight thousand, seven hundred forty-one".