3240534123440 has 160 divisors (see below), whose sum is σ = 8075764260864. Its totient is φ = 1205013196800.

The previous prime is 3240534123439. The next prime is 3240534123503. The reversal of 3240534123440 is 443214350423.

It is a super-2 number, since 2×3240534123440² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3240534123440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39166115 + ... + 39248765.

Almost surely, 2^{3240534123440} 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 3240534123440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4037882130432).

3240534123440 is an abundant number, since it is smaller than the sum of its proper divisors (4835230137424).

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

3240534123440 is a wasteful number, since it uses less digits than its factorization.

3240534123440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83035 (or 83029 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 3240534123440 its reverse (443214350423), we get a palindrome (3683748473863).

The spelling of 3240534123440 in words is "three trillion, two hundred forty billion, five hundred thirty-four million, one hundred twenty-three thousand, four hundred forty".