281428304480 has 48 divisors (see below), whose sum is σ = 665006993280. Its totient is φ = 112548867072.

The previous prime is 281428304461. The next prime is 281428304501. The reversal of 281428304480 is 84403824182.

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, 641036 + ... + 986804.

It is an arithmetic number, because the mean of its divisors is an integer number (13854312360).

Almost surely, 2^281428304480 is an apocalyptic number.

281428304480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

281428304480 is an abundant number, since it is smaller than the sum of its proper divisors (383578688800).

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

281428304480 is a wasteful number, since it uses less digits than its factorization.

281428304480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350871 (or 350863 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 44.

The spelling of 281428304480 in words is "two hundred eighty-one billion, four hundred twenty-eight million, three hundred four thousand, four hundred eighty".