280874880 has 576 divisors, whose sum is σ = 1185125760. Its totient is φ = 60825600.

The previous prime is 280874879. The next prime is 280874897. The reversal of 280874880 is 88478082.

280874880 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 (576).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9060465 + ... + 9060495.

It is an arithmetic number, because the mean of its divisors is an integer number (2057510).

Almost surely, 2^280874880 is an apocalyptic number.

280874880 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 280874880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592562880).

280874880 is an abundant number, since it is smaller than the sum of its proper divisors (904250880).

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

280874880 is a wasteful number, since it uses less digits than its factorization.

280874880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 45.

The square root of 280874880 is about 16759.3221819977. The cubic root of 280874880 is about 654.8939322838.

The spelling of 280874880 in words is "two hundred eighty million, eight hundred seventy-four thousand, eight hundred eighty".