3243152240 has 40 divisors (see below), whose sum is σ = 7635791040. Its totient is φ = 1280837376.

The previous prime is 3243152207. The next prime is 3243152243. The reversal of 3243152240 is 422513423.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243152243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250259 + ... + 262898.

It is an arithmetic number, because the mean of its divisors is an integer number (190894776).

Almost surely, 2^3243152240 is an apocalyptic number.

It is an amenable number.

3243152240 is an abundant number, since it is smaller than the sum of its proper divisors (4392638800).

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

3243152240 is a wasteful number, since it uses less digits than its factorization.

3243152240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513249 (or 513243 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 3243152240 is about 56948.6807573275. The cubic root of 3243152240 is about 1480.2069712981.

Adding to 3243152240 its reverse (422513423), we get a palindrome (3665665663).

The spelling of 3243152240 in words is "three billion, two hundred forty-three million, one hundred fifty-two thousand, two hundred forty".