280283228460 has 72 divisors (see below), whose sum is σ = 850261164480. Its totient is φ = 74736154368.

The previous prime is 280283228447. The next prime is 280283228483. The reversal of 280283228460 is 64822382082.

280283228460 is a `hidden beast` number, since 280 + 2 + 8 + 32 + 284 + 60 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2448381 + ... + 2560299.

It is an arithmetic number, because the mean of its divisors is an integer number (11809182840).

Almost surely, 2^280283228460 is an apocalyptic number.

280283228460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280283228460 is an abundant number, since it is smaller than the sum of its proper divisors (569977936020).

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

280283228460 is a wasteful number, since it uses less digits than its factorization.

280283228460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125847 (or 125842 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 45.

The spelling of 280283228460 in words is "two hundred eighty billion, two hundred eighty-three million, two hundred twenty-eight thousand, four hundred sixty".