226809815 has 8 divisors (see below), whose sum is σ = 279528000. Its totient is φ = 176543712.

The previous prime is 226809787. The next prime is 226809823. The reversal of 226809815 is 518908622.

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

It is a cyclic number.

It is not a de Polignac number, because 226809815 - 2⁸ = 226809559 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612815 + ... + 613184.

It is an arithmetic number, because the mean of its divisors is an integer number (34941000).

Almost surely, 2^226809815 is an apocalyptic number.

226809815 is a deficient number, since it is larger than the sum of its proper divisors (52718185).

226809815 is a wasteful number, since it uses less digits than its factorization.

226809815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226041.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 226809815 is about 15060.2063398879. The cubic root of 226809815 is about 609.8466110786.

The spelling of 226809815 in words is "two hundred twenty-six million, eight hundred nine thousand, eight hundred fifteen".