3281385605 has 16 divisors (see below), whose sum is σ = 4027014144. Its totient is φ = 2565696000.

The previous prime is 3281385563. The next prime is 3281385607. The reversal of 3281385605 is 5065831823.

3281385605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3281385605 - 2¹⁶ = 3281320069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3281385607) 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, 167189 + ... + 185781.

It is an arithmetic number, because the mean of its divisors is an integer number (251688384).

Almost surely, 2^3281385605 is an apocalyptic number.

It is an amenable number.

3281385605 is a deficient number, since it is larger than the sum of its proper divisors (745628539).

3281385605 is a wasteful number, since it uses less digits than its factorization.

3281385605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19396.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 3281385605 is about 57283.3798321991. The cubic root of 3281385605 is about 1486.0009583986. Note that the first 3 decimals are identical.

The spelling of 3281385605 in words is "three billion, two hundred eighty-one million, three hundred eighty-five thousand, six hundred five".