32040140412 has 96 divisors (see below), whose sum is σ = 88703032320. Its totient is φ = 8807016960.

The previous prime is 32040140389. The next prime is 32040140443. The reversal of 32040140412 is 21404104023.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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, 661113 + ... + 707919.

It is an arithmetic number, because the mean of its divisors is an integer number (923989920).

Almost surely, 2^32040140412 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 32040140412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44351516160).

32040140412 is an abundant number, since it is smaller than the sum of its proper divisors (56662891908).

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

32040140412 is a wasteful number, since it uses less digits than its factorization.

32040140412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47131 (or 47129 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 32040140412 its reverse (21404104023), we get a palindrome (53444244435).

The spelling of 32040140412 in words is "thirty-two billion, forty million, one hundred forty thousand, four hundred twelve".