281346048 has 170 divisors, whose sum is σ = 856417914. Its totient is φ = 92012544.

The previous prime is 281346047. The next prime is 281346061. The reversal of 281346048 is 840643182.

It can be written as a sum of positive squares in only one way, i.e., 260112384 + 21233664 = 16128^2 + 4608^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281346047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5308390 + ... + 5308442.

Almost surely, 2^281346048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 281346048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428208957).

281346048 is an abundant number, since it is smaller than the sum of its proper divisors (575071866).

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

281346048 is an frugal number, since it uses more digits than its factorization.

281346048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 281346048 is about 16773.3731849023. The cubic root of 281346048 is about 655.2599228695.

The spelling of 281346048 in words is "two hundred eighty-one million, three hundred forty-six thousand, forty-eight".