1606728441 has 16 divisors (see below), whose sum is σ = 2276078400. Its totient is φ = 1006262208.

The previous prime is 1606728391. The next prime is 1606728527. The reversal of 1606728441 is 1448276061.

It is not a de Polignac number, because 1606728441 - 2¹⁴ = 1606712057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1606728441.

It is not an unprimeable number, because it can be changed into a prime (1606728341) 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, 246351 + ... + 252788.

It is an arithmetic number, because the mean of its divisors is an integer number (142254900).

Almost surely, 2^1606728441 is an apocalyptic number.

It is an amenable number.

1606728441 is a deficient number, since it is larger than the sum of its proper divisors (669349959).

1606728441 is a wasteful number, since it uses less digits than its factorization.

1606728441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499208.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1606728441 is about 40084.0172762162. The cubic root of 1606728441 is about 1171.2443091830.

The spelling of 1606728441 in words is "one billion, six hundred six million, seven hundred twenty-eight thousand, four hundred forty-one".