28248294 has 8 divisors (see below), whose sum is σ = 56496600. Its totient is φ = 9416096.

The previous prime is 28248287. The next prime is 28248313. The reversal of 28248294 is 49284282.

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

28248294 is an admirable number.

It is a super-3 number, since 3×28248294³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 3 ways as a sum of consecutive naturals, for example, 2354019 + ... + 2354030.

It is an arithmetic number, because the mean of its divisors is an integer number (7062075).

Almost surely, 2^28248294 is an apocalyptic number.

28248294 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.

28248294 is a wasteful number, since it uses less digits than its factorization.

28248294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4708054.

The product of its digits is 73728, while the sum is 39.

The square root of 28248294 is about 5314.9124169642. The cubic root of 28248294 is about 304.5538365933.

The spelling of 28248294 in words is "twenty-eight million, two hundred forty-eight thousand, two hundred ninety-four".