28810208 has 48 divisors (see below), whose sum is σ = 66425184. Its totient is φ = 12042240.

The previous prime is 28810207. The next prime is 28810247. The reversal of 28810208 is 80201882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28810207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7616 + ... + 10752.

It is an arithmetic number, because the mean of its divisors is an integer number (1383858).

Almost surely, 2^28810208 is an apocalyptic number.

28810208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28810208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33212592).

28810208 is an abundant number, since it is smaller than the sum of its proper divisors (37614976).

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

28810208 is a wasteful number, since it uses less digits than its factorization.

28810208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3195 (or 3187 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 28810208 is about 5367.5141359851. The cubic root of 28810208 is about 306.5599838956.

The spelling of 28810208 in words is "twenty-eight million, eight hundred ten thousand, two hundred eight".