28334208 has 128 divisors (see below), whose sum is σ = 87736320. Its totient is φ = 7934976.

The previous prime is 28334197. The next prime is 28334209. The reversal of 28334208 is 80243382.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (28334209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223041 + ... + 223167.

It is an arithmetic number, because the mean of its divisors is an integer number (685440).

Almost surely, 2^28334208 is an apocalyptic number.

28334208 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 28334208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43868160).

28334208 is an abundant number, since it is smaller than the sum of its proper divisors (59402112).

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

28334208 is a wasteful number, since it uses less digits than its factorization.

28334208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 28334208 is about 5322.9886342167. The cubic root of 28334208 is about 304.8622794871.

The spelling of 28334208 in words is "twenty-eight million, three hundred thirty-four thousand, two hundred eight".