3205040780 has 12 divisors (see below), whose sum is σ = 6730585680. Its totient is φ = 1282016304.

The previous prime is 3205040723. The next prime is 3205040789. The reversal of 3205040780 is 870405023.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3205040789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80126000 + ... + 80126039.

It is an arithmetic number, because the mean of its divisors is an integer number (560882140).

Almost surely, 2^3205040780 is an apocalyptic number.

It is an amenable number.

3205040780 is an abundant number, since it is smaller than the sum of its proper divisors (3525544900).

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

3205040780 is a wasteful number, since it uses less digits than its factorization.

3205040780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160252048 (or 160252046 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 3205040780 is about 56613.0795841385. The cubic root of 3205040780 is about 1474.3859598669.

The spelling of 3205040780 in words is "three billion, two hundred five million, forty thousand, seven hundred eighty".