3243012140 has 72 divisors (see below), whose sum is σ = 7275653280. Its totient is φ = 1210028544.

The previous prime is 3243012133. The next prime is 3243012151. The reversal of 3243012140 is 412103423.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 9033281 + ... + 9033639.

It is an arithmetic number, because the mean of its divisors is an integer number (101050740).

Almost surely, 2^3243012140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3243012140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3637826640).

3243012140 is an abundant number, since it is smaller than the sum of its proper divisors (4032641140).

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

3243012140 is a wasteful number, since it uses less digits than its factorization.

3243012140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 546 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3243012140 is about 56947.4506892100. The cubic root of 3243012140 is about 1480.1856566463.

Adding to 3243012140 its reverse (412103423), we get a palindrome (3655115563).

The spelling of 3243012140 in words is "three billion, two hundred forty-three million, twelve thousand, one hundred forty".