3240639360 has 512 divisors, whose sum is σ = 13332787200. Its totient is φ = 728580096.

The previous prime is 3240639313. The next prime is 3240639361. The reversal of 3240639360 is 639360423.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3240639361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8829897 + ... + 8830263.

It is an arithmetic number, because the mean of its divisors is an integer number (26040600).

Almost surely, 2^3240639360 is an apocalyptic number.

3240639360 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3240639360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6666393600).

3240639360 is an abundant number, since it is smaller than the sum of its proper divisors (10092147840).

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

3240639360 is a wasteful number, since it uses less digits than its factorization.

3240639360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 36.

The square root of 3240639360 is about 56926.6138111165. The cubic root of 3240639360 is about 1479.8245713665.

Adding to 3240639360 its reverse (639360423), we get a palindrome (3879999783).

The spelling of 3240639360 in words is "three billion, two hundred forty million, six hundred thirty-nine thousand, three hundred sixty".