28616226 has 16 divisors (see below), whose sum is σ = 57288000. Its totient is φ = 9529488.

The previous prime is 28616213. The next prime is 28616267. The reversal of 28616226 is 62261682.

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 7 ways as a sum of consecutive naturals, for example, 7755 + ... + 10833.

It is an arithmetic number, because the mean of its divisors is an integer number (3580500).

Almost surely, 2^28616226 is an apocalyptic number.

28616226 is an abundant number, since it is smaller than the sum of its proper divisors (28671774).

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

28616226 is a wasteful number, since it uses less digits than its factorization.

28616226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4633.

The product of its digits is 13824, while the sum is 33.

The square root of 28616226 is about 5349.4136127243. The cubic root of 28616226 is about 305.8704009267.

The spelling of 28616226 in words is "twenty-eight million, six hundred sixteen thousand, two hundred twenty-six".