3205404140 has 24 divisors (see below), whose sum is σ = 6732836880. Its totient is φ = 1281878208.

The previous prime is 3205404113. The next prime is 3205404143. The reversal of 3205404140 is 414045023.

It is not an unprimeable number, because it can be changed into a prime (3205404143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91406 + ... + 121514.

It is an arithmetic number, because the mean of its divisors is an integer number (280534870).

Almost surely, 2^3205404140 is an apocalyptic number.

It is an amenable number.

3205404140 is an abundant number, since it is smaller than the sum of its proper divisors (3527432740).

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

3205404140 is a wasteful number, since it uses less digits than its factorization.

3205404140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35441 (or 35439 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 3205404140 is about 56616.2886455833. The cubic root of 3205404140 is about 1474.4416755010.

Adding to 3205404140 its reverse (414045023), we get a palindrome (3619449163).

The spelling of 3205404140 in words is "three billion, two hundred five million, four hundred four thousand, one hundred forty".