281130480 has 160 divisors (see below), whose sum is σ = 975681600. Its totient is φ = 74400768.

The previous prime is 281130469. The next prime is 281130491. The reversal of 281130480 is 84031182.

281130480 is a `hidden beast` number, since 281 + 1 + 304 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (281130469) and next prime (281130491).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 338706 + ... + 339534.

It is an arithmetic number, because the mean of its divisors is an integer number (6098010).

Almost surely, 2^281130480 is an apocalyptic number.

281130480 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 281130480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487840800).

281130480 is an abundant number, since it is smaller than the sum of its proper divisors (694551120).

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

281130480 is a wasteful number, since it uses less digits than its factorization.

281130480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008 (or 996 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 281130480 is about 16766.9460546636. The cubic root of 281130480 is about 655.0925262138.

The spelling of 281130480 in words is "two hundred eighty-one million, one hundred thirty thousand, four hundred eighty".