28651226 has 8 divisors (see below), whose sum is σ = 43705440. Its totient is φ = 14082748.

The previous prime is 28651219. The next prime is 28651237. The reversal of 28651226 is 62215682.

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

It is a junction number, because it is equal to n+sod(n) for n = 28651192 and 28651201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121286 + ... + 121521.

It is an arithmetic number, because the mean of its divisors is an integer number (5463180).

Almost surely, 2^28651226 is an apocalyptic number.

28651226 is a deficient number, since it is larger than the sum of its proper divisors (15054214).

28651226 is a wasteful number, since it uses less digits than its factorization.

28651226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242868.

The product of its digits is 11520, while the sum is 32.

The square root of 28651226 is about 5352.6839996398. The cubic root of 28651226 is about 305.9950516807.

The spelling of 28651226 in words is "twenty-eight million, six hundred fifty-one thousand, two hundred twenty-six".