3240399612320 has 192 divisors, whose sum is σ = 8416466061696. Its totient is φ = 1171646484480.

The previous prime is 3240399612319. The next prime is 3240399612383. The reversal of 3240399612320 is 232169930423.

It is a Cunningham number, because it is equal to 1800111²-1.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28745507 + ... + 28858013.

It is an arithmetic number, because the mean of its divisors is an integer number (43835760738).

Almost surely, 2^{3240399612320} 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 3240399612320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4208233030848).

3240399612320 is an abundant number, since it is smaller than the sum of its proper divisors (5176066449376).

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

3240399612320 is a wasteful number, since it uses less digits than its factorization.

3240399612320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112823 (or 112815 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 44.

The spelling of 3240399612320 in words is "three trillion, two hundred forty billion, three hundred ninety-nine million, six hundred twelve thousand, three hundred twenty".