28126208 has 66 divisors (see below), whose sum is σ = 62073228. Its totient is φ = 12728320.

The previous prime is 28126187. The next prime is 28126229. The reversal of 28126208 is 80262182.

It is an interprime number because it is at equal distance from previous prime (28126187) and next prime (28126229).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123791 + ... + 124017.

Almost surely, 2^28126208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28126208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31036614).

28126208 is an abundant number, since it is smaller than the sum of its proper divisors (33947020).

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

28126208 is a wasteful number, since it uses less digits than its factorization.

28126208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 28126208 is about 5303.4147490084. The cubic root of 28126208 is about 304.1144536719.

The spelling of 28126208 in words is "twenty-eight million, one hundred twenty-six thousand, two hundred eight".