32232389728 has 144 divisors (see below), whose sum is σ = 80685460800. Its totient is φ = 12533633280.

The previous prime is 32232389723. The next prime is 32232389747. The reversal of 32232389728 is 82798323223.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32232389723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10675003 + ... + 10678021.

It is an arithmetic number, because the mean of its divisors is an integer number (560315700).

Almost surely, 2^32232389728 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 32232389728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40342730400).

32232389728 is an abundant number, since it is smaller than the sum of its proper divisors (48453071072).

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

32232389728 is a wasteful number, since it uses less digits than its factorization.

32232389728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3673 (or 3658 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 49.

The spelling of 32232389728 in words is "thirty-two billion, two hundred thirty-two million, three hundred eighty-nine thousand, seven hundred twenty-eight".