28281354 has 8 divisors (see below), whose sum is σ = 56562720. Its totient is φ = 9427116.

The previous prime is 28281343. The next prime is 28281371. The reversal of 28281354 is 45318282.

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

28281354 is an admirable 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, 2356774 + ... + 2356785.

It is an arithmetic number, because the mean of its divisors is an integer number (7070340).

Almost surely, 2^28281354 is an apocalyptic number.

28281354 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.

28281354 is a wasteful number, since it uses less digits than its factorization.

28281354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4713564.

The product of its digits is 15360, while the sum is 33.

The square root of 28281354 is about 5318.0216246270. The cubic root of 28281354 is about 304.6726003970.

The spelling of 28281354 in words is "twenty-eight million, two hundred eighty-one thousand, three hundred fifty-four".