28254504 has 32 divisors (see below), whose sum is σ = 71608320. Its totient is φ = 9288576.

The previous prime is 28254467. The next prime is 28254517. The reversal of 28254504 is 40545282.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6312 + ... + 9815.

It is an arithmetic number, because the mean of its divisors is an integer number (2237760).

Almost surely, 2^28254504 is an apocalyptic number.

28254504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28254504 is an abundant number, since it is smaller than the sum of its proper divisors (43353816).

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

28254504 is a wasteful number, since it uses less digits than its factorization.

28254504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16209 (or 16205 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 28254504 is about 5315.4965901598. The cubic root of 28254504 is about 304.5761522861.

Adding to 28254504 its reverse (40545282), we get a palindrome (68799786).

The spelling of 28254504 in words is "twenty-eight million, two hundred fifty-four thousand, five hundred four".