28160226 has 12 divisors (see below), whose sum is σ = 61013862. Its totient is φ = 9386736.

The previous prime is 28160221. The next prime is 28160239. The reversal of 28160226 is 62206182.

It can be written as a sum of positive squares in only one way, i.e., 28037025 + 123201 = 5295^2 + 351^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28160226.

It is not an unprimeable number, because it can be changed into a prime (28160221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 782211 + ... + 782246.

Almost surely, 2^28160226 is an apocalyptic number.

28160226 is an abundant number, since it is smaller than the sum of its proper divisors (32853636).

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

28160226 is a wasteful number, since it uses less digits than its factorization.

28160226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564465 (or 1564462 counting only the distinct ones).

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

The square root of 28160226 is about 5306.6209587646. The cubic root of 28160226 is about 304.2370107482.

The spelling of 28160226 in words is "twenty-eight million, one hundred sixty thousand, two hundred twenty-six".