28285574 has 8 divisors (see below), whose sum is σ = 42506208. Its totient is φ = 14116840.

The previous prime is 28285571. The next prime is 28285583. The reversal of 28285574 is 47558282.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28285571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11582 + ... + 13809.

It is an arithmetic number, because the mean of its divisors is an integer number (5313276).

Almost surely, 2^28285574 is an apocalyptic number.

28285574 is a deficient number, since it is larger than the sum of its proper divisors (14220634).

28285574 is a wasteful number, since it uses less digits than its factorization.

28285574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25950.

The product of its digits is 179200, while the sum is 41.

The square root of 28285574 is about 5318.4183739153. The cubic root of 28285574 is about 304.6877535426.

The spelling of 28285574 in words is "twenty-eight million, two hundred eighty-five thousand, five hundred seventy-four".