32540140240 has 80 divisors (see below), whose sum is σ = 79709541120. Its totient is φ = 12319879680.

The previous prime is 32540140231. The next prime is 32540140253. The reversal of 32540140240 is 4204104523.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1786057 + ... + 1804183.

It is an arithmetic number, because the mean of its divisors is an integer number (996369264).

Almost surely, 2^32540140240 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 32540140240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39854770560).

32540140240 is an abundant number, since it is smaller than the sum of its proper divisors (47169400880).

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

32540140240 is a wasteful number, since it uses less digits than its factorization.

32540140240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19340 (or 19334 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 32540140240 its reverse (4204104523), we get a palindrome (36744244763).

The spelling of 32540140240 in words is "thirty-two billion, five hundred forty million, one hundred forty thousand, two hundred forty".