28226080 has 24 divisors (see below), whose sum is σ = 66684492. Its totient is φ = 11290368.

The previous prime is 28226071. The next prime is 28226087. The reversal of 28226080 is 8062282.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26998416 + 1227664 = 5196^2 + 1108^2 .

It is not an unprimeable number, because it can be changed into a prime (28226087) 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 3 ways as a sum of consecutive naturals, for example, 88047 + ... + 88366.

Almost surely, 2^28226080 is an apocalyptic number.

28226080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28226080 is an abundant number, since it is smaller than the sum of its proper divisors (38458412).

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

28226080 is a wasteful number, since it uses less digits than its factorization.

28226080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176428 (or 176420 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 28226080 is about 5312.8222255219. The cubic root of 28226080 is about 304.4739835930.

It can be divided in two parts, 282 and 26080, that added together give a palindrome (26362).

The spelling of 28226080 in words is "twenty-eight million, two hundred twenty-six thousand, eighty".