32030243440 has 80 divisors (see below), whose sum is σ = 83685768768. Its totient is φ = 11312345088.

The previous prime is 32030243431. The next prime is 32030243447. The reversal of 32030243440 is 4434203023.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32030243447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645609 + ... + 693448.

Almost surely, 2^32030243440 is an apocalyptic number.

It is an amenable number.

32030243440 is an abundant number, since it is smaller than the sum of its proper divisors (51655525328).

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

32030243440 is a wasteful number, since it uses less digits than its factorization.

32030243440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339106 (or 1339100 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 32030243440 its reverse (4434203023), we get a palindrome (36464446463).

The spelling of 32030243440 in words is "thirty-two billion, thirty million, two hundred forty-three thousand, four hundred forty".