281648480 has 48 divisors (see below), whose sum is σ = 674793504. Its totient is φ = 111068160.

The previous prime is 281648473. The next prime is 281648491. The reversal of 281648480 is 84846182.

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, 1037 + ... + 23756.

It is an arithmetic number, because the mean of its divisors is an integer number (14058198).

Almost surely, 2^281648480 is an apocalyptic number.

281648480 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 281648480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337396752).

281648480 is an abundant number, since it is smaller than the sum of its proper divisors (393145024).

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

281648480 is a wasteful number, since it uses less digits than its factorization.

281648480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24879 (or 24871 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 41.

The square root of 281648480 is about 16782.3860043797. The cubic root of 281648480 is about 655.4946286169.

The spelling of 281648480 in words is "two hundred eighty-one million, six hundred forty-eight thousand, four hundred eighty".