3252240640 has 144 divisors (see below), whose sum is σ = 8946342720. Its totient is φ = 1120296960.

The previous prime is 3252240619. The next prime is 3252240647. The reversal of 3252240640 is 460422523.

It is a junction number, because it is equal to n+sod(n) for n = 3252240599 and 3252240608.

It is not an unprimeable number, because it can be changed into a prime (3252240647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261442 + ... + 273598.

It is an arithmetic number, because the mean of its divisors is an integer number (62127380).

Almost surely, 2^3252240640 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 3252240640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4473171360).

3252240640 is an abundant number, since it is smaller than the sum of its proper divisors (5694102080).

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

3252240640 is a wasteful number, since it uses less digits than its factorization.

3252240640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12208 (or 12194 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 3252240640 is about 57028.4195818190. The cubic root of 3252240640 is about 1481.5883604769.

The spelling of 3252240640 in words is "three billion, two hundred fifty-two million, two hundred forty thousand, six hundred forty".