28214208 has 168 divisors, whose sum is σ = 90897456. Its totient is φ = 8294400.

The previous prime is 28214201. The next prime is 28214233. The reversal of 28214208 is 80241282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28214201) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 386460 + ... + 386532.

Almost surely, 2^28214208 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 28214208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45448728).

28214208 is an abundant number, since it is smaller than the sum of its proper divisors (62683248).

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

28214208 is a wasteful number, since it uses less digits than its factorization.

28214208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 28214208 is about 5311.7048110753. The cubic root of 28214208 is about 304.4312899560.

The spelling of 28214208 in words is "twenty-eight million, two hundred fourteen thousand, two hundred eight".