3205115540 has 48 divisors (see below), whose sum is σ = 7349275584. Its totient is φ = 1164441600.

The previous prime is 3205115539. The next prime is 3205115569. The reversal of 3205115540 is 455115023.

3205115540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261755 + ... + 273725.

It is an arithmetic number, because the mean of its divisors is an integer number (153109908).

Almost surely, 2^3205115540 is an apocalyptic number.

It is an amenable number.

3205115540 is an abundant number, since it is smaller than the sum of its proper divisors (4144160044).

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

3205115540 is a wasteful number, since it uses less digits than its factorization.

3205115540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13208 (or 13206 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 3205115540 is about 56613.7398517356. The cubic root of 3205115540 is about 1474.3974235003.

The spelling of 3205115540 in words is "three billion, two hundred five million, one hundred fifteen thousand, five hundred forty".