280025328000 has 1024 divisors, whose sum is σ = 1051719552000. Its totient is φ = 65331200000.

The previous prime is 280025327993. The next prime is 280025328001. The reversal of 280025328000 is 823520082.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280025328001) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2772527950 + ... + 2772528050.

It is an arithmetic number, because the mean of its divisors is an integer number (1027069875).

Almost surely, 2^280025328000 is an apocalyptic number.

280025328000 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 280025328000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (525859776000).

280025328000 is an abundant number, since it is smaller than the sum of its proper divisors (771694224000).

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

280025328000 is a wasteful number, since it uses less digits than its factorization.

280025328000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 280025328000 its reverse (823520082), we get a palindrome (280848848082).

The spelling of 280025328000 in words is "two hundred eighty billion, twenty-five million, three hundred twenty-eight thousand".