281728038 has 8 divisors (see below), whose sum is σ = 563456088. Its totient is φ = 93909344.

The previous prime is 281728021. The next prime is 281728079. The reversal of 281728038 is 830827182.

281728038 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

281728038 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 281727987 and 281728005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23477331 + ... + 23477342.

It is an arithmetic number, because the mean of its divisors is an integer number (70432011).

Almost surely, 2^281728038 is an apocalyptic number.

281728038 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

281728038 is a wasteful number, since it uses less digits than its factorization.

281728038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46954678.

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 281728038 is about 16784.7561197653. The cubic root of 281728038 is about 655.5563425805.

The spelling of 281728038 in words is "two hundred eighty-one million, seven hundred twenty-eight thousand, thirty-eight".