28034208 has 96 divisors (see below), whose sum is σ = 83099520. Its totient is φ = 9192960.

The previous prime is 28034189. The next prime is 28034219. The reversal of 28034208 is 80243082.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 61116 + ... + 61572.

It is an arithmetic number, because the mean of its divisors is an integer number (865620).

Almost surely, 2^28034208 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 28034208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41549760).

28034208 is an abundant number, since it is smaller than the sum of its proper divisors (55065312).

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

28034208 is a wasteful number, since it uses less digits than its factorization.

28034208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547 (or 533 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 28034208 is about 5294.7339876523. The cubic root of 28034208 is about 303.7825083329.

The spelling of 28034208 in words is "twenty-eight million, thirty-four thousand, two hundred eight".