3240020140 has 72 divisors (see below), whose sum is σ = 8380532160. Its totient is φ = 1045513728.

The previous prime is 3240020057. The next prime is 3240020167. The reversal of 3240020140 is 410200423.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80580 + ... + 113899.

It is an arithmetic number, because the mean of its divisors is an integer number (116396280).

Almost surely, 2^3240020140 is an apocalyptic number.

It is an amenable number.

3240020140 is an abundant number, since it is smaller than the sum of its proper divisors (5140512020).

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

3240020140 is a wasteful number, since it uses less digits than its factorization.

3240020140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194519 (or 194510 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 3240020140 is about 56921.1747946228. The cubic root of 3240020140 is about 1479.7303106111.

Adding to 3240020140 its reverse (410200423), we get a palindrome (3650220563).

The spelling of 3240020140 in words is "three billion, two hundred forty million, twenty thousand, one hundred forty".