32428238064 has 80 divisors (see below), whose sum is σ = 86403041280. Its totient is φ = 10474604800.

The previous prime is 32428238057. The next prime is 32428238069. The reversal of 32428238064 is 46083282423.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32428238069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156697 + ... + 299015.

It is an arithmetic number, because the mean of its divisors is an integer number (1080038016).

Almost surely, 2^32428238064 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 32428238064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43201520640).

32428238064 is an abundant number, since it is smaller than the sum of its proper divisors (53974803216).

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

32428238064 is a wasteful number, since it uses less digits than its factorization.

32428238064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142478 (or 142472 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 42.

The spelling of 32428238064 in words is "thirty-two billion, four hundred twenty-eight million, two hundred thirty-eight thousand, sixty-four".