3120020240 has 20 divisors (see below), whose sum is σ = 7254047244. Its totient is φ = 1248008064.

The previous prime is 3120020207. The next prime is 3120020249. The reversal of 3120020240 is 420200213.

It can be written as a sum of positive squares in 2 ways, for example, as 1927561216 + 1192459024 = 43904^2 + 34532^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (3120020249) 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 3 ways as a sum of consecutive naturals, for example, 19500047 + ... + 19500206.

Almost surely, 2^3120020240 is an apocalyptic number.

It is an amenable number.

3120020240 is an abundant number, since it is smaller than the sum of its proper divisors (4134027004).

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

3120020240 is a wasteful number, since it uses less digits than its factorization.

3120020240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39000266 (or 39000260 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 3120020240 is about 55857.1413518451. The cubic root of 3120020240 is about 1461.2318745567.

Adding to 3120020240 its reverse (420200213), we get a palindrome (3540220453).

The spelling of 3120020240 in words is "three billion, one hundred twenty million, twenty thousand, two hundred forty".