32281379928 has 192 divisors, whose sum is σ = 107908524000. Its totient is φ = 8905123584.

The previous prime is 32281379909. The next prime is 32281379939. The reversal of 32281379928 is 82997318223.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 254350 + ... + 359522.

Almost surely, 2^32281379928 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 32281379928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53954262000).

32281379928 is an abundant number, since it is smaller than the sum of its proper divisors (75627144072).

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

32281379928 is a wasteful number, since it uses less digits than its factorization.

32281379928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105231 (or 105214 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The spelling of 32281379928 in words is "thirty-two billion, two hundred eighty-one million, three hundred seventy-nine thousand, nine hundred twenty-eight".