28016622 has 96 divisors (see below), whose sum is σ = 68290560. Its totient is φ = 8268480.

The previous prime is 28016609. The next prime is 28016627. The reversal of 28016622 is 22661082.

28016622 is a `hidden beast` number, since 28 + 0 + 16 + 622 = 666.

It is a super-2 number, since 2×28016622² = 1569862216581768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28016627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 474829 + ... + 474887.

It is an arithmetic number, because the mean of its divisors is an integer number (711360).

Almost surely, 2^28016622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28016622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34145280).

28016622 is an abundant number, since it is smaller than the sum of its proper divisors (40273938).

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

28016622 is a wasteful number, since it uses less digits than its factorization.

28016622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 28016622 is about 5293.0730204674. The cubic root of 28016622 is about 303.7189736129.

The spelling of 28016622 in words is "twenty-eight million, sixteen thousand, six hundred twenty-two".