28285300 has 36 divisors (see below), whose sum is σ = 64613920. Its totient is φ = 10717920.

The previous prime is 28285261. The next prime is 28285303. The reversal of 28285300 is 358282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28285303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5544 + ... + 9343.

Almost surely, 2^28285300 is an apocalyptic number.

28285300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28285300 is an abundant number, since it is smaller than the sum of its proper divisors (36328620).

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

28285300 is a wasteful number, since it uses less digits than its factorization.

28285300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14920 (or 14913 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 28285300 is about 5318.3926143150. The cubic root of 28285300 is about 304.6867697112.

It can be divided in two parts, 2828 and 5300, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 28285300 in words is "twenty-eight million, two hundred eighty-five thousand, three hundred".