3243345140 has 96 divisors (see below), whose sum is σ = 7895543040. Its totient is φ = 1096187904.

The previous prime is 3243345137. The next prime is 3243345143. The reversal of 3243345140 is 415433423.

It is an interprime number because it is at equal distance from previous prime (3243345137) and next prime (3243345143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243345143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3921407 + ... + 3922233.

It is an arithmetic number, because the mean of its divisors is an integer number (82245240).

Almost surely, 2^3243345140 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 3243345140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3947771520).

3243345140 is an abundant number, since it is smaller than the sum of its proper divisors (4652197900).

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

3243345140 is a wasteful number, since it uses less digits than its factorization.

3243345140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209 (or 1207 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 3243345140 is about 56950.3743622463. The cubic root of 3243345140 is about 1480.2363178765.

Adding to 3243345140 its reverse (415433423), we get a palindrome (3658778563).

The spelling of 3243345140 in words is "three billion, two hundred forty-three million, three hundred forty-five thousand, one hundred forty".