280372928000 has 640 divisors, whose sum is σ = 816273469440. Its totient is φ = 95047680000.

The previous prime is 280372927981. The next prime is 280372928023. The reversal of 280372928000 is 829273082.

280372928000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (640).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 632895779 + ... + 632896221.

It is an arithmetic number, because the mean of its divisors is an integer number (1275427296).

Almost surely, 2^280372928000 is an apocalyptic number.

280372928000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 280372928000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408136734720).

280372928000 is an abundant number, since it is smaller than the sum of its proper divisors (535900541440).

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

280372928000 is a wasteful number, since it uses less digits than its factorization.

280372928000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 280372928000 in words is "two hundred eighty billion, three hundred seventy-two million, nine hundred twenty-eight thousand".