28080226 has 8 divisors (see below), whose sum is σ = 44598060. Its totient is φ = 13214208.

The previous prime is 28080211. The next prime is 28080229. The reversal of 28080226 is 62208082.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27029601 + 1050625 = 5199^2 + 1025^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×28080226² = 1576998184422152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28080194 and 28080203.

It is not an unprimeable number, because it can be changed into a prime (28080229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412911 + ... + 412978.

Almost surely, 2^28080226 is an apocalyptic number.

28080226 is a deficient number, since it is larger than the sum of its proper divisors (16517834).

28080226 is a wasteful number, since it uses less digits than its factorization.

28080226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825908.

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

The square root of 28080226 is about 5299.0778443046. The cubic root of 28080226 is about 303.9486365784.

The spelling of 28080226 in words is "twenty-eight million, eighty thousand, two hundred twenty-six".