280558848 has 72 divisors (see below), whose sum is σ = 749379456. Its totient is φ = 93184000.

The previous prime is 280558801. The next prime is 280558879. The reversal of 280558848 is 848855082.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 280558797 and 280558806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307513 + ... + 308423.

It is an arithmetic number, because the mean of its divisors is an integer number (10408048).

Almost surely, 2^280558848 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 280558848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374689728).

280558848 is an abundant number, since it is smaller than the sum of its proper divisors (468820608).

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

280558848 is an equidigital number, since it uses as much as digits as its factorization.

280558848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331 (or 1317 counting only the distinct ones).

The product of its (nonzero) digits is 819200, while the sum is 48.

The square root of 280558848 is about 16749.8909847199. The cubic root of 280558848 is about 654.6482177599.

The spelling of 280558848 in words is "two hundred eighty million, five hundred fifty-eight thousand, eight hundred forty-eight".