3205540120 has 32 divisors (see below), whose sum is σ = 7445128320. Its totient is φ = 1240853760.

The previous prime is 3205540109. The next prime is 3205540159. The reversal of 3205540120 is 210455023.

It is a super-2 number, since 2×3205540120² = 20550974921859228800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3205540091 and 3205540100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1291317 + ... + 1293796.

It is an arithmetic number, because the mean of its divisors is an integer number (232660260).

Almost surely, 2^3205540120 is an apocalyptic number.

It is an amenable number.

3205540120 is an abundant number, since it is smaller than the sum of its proper divisors (4239588200).

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

3205540120 is a wasteful number, since it uses less digits than its factorization.

3205540120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585155 (or 2585151 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 3205540120 is about 56617.4895239978. The cubic root of 3205540120 is about 1474.4625248474.

Adding to 3205540120 its reverse (210455023), we get a palindrome (3415995143).

The spelling of 3205540120 in words is "three billion, two hundred five million, five hundred forty thousand, one hundred twenty".