228520886 has 8 divisors (see below), whose sum is σ = 373943304. Its totient is φ = 103873120.

The previous prime is 228520849. The next prime is 228520907. The reversal of 228520886 is 688025822.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5193635 + ... + 5193678.

It is an arithmetic number, because the mean of its divisors is an integer number (46742913).

Almost surely, 2^228520886 is an apocalyptic number.

228520886 is a deficient number, since it is larger than the sum of its proper divisors (145422418).

228520886 is a wasteful number, since it uses less digits than its factorization.

228520886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10387326.

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 228520886 is about 15116.9072895219. The cubic root of 228520886 is about 611.3763475447.

The spelling of 228520886 in words is "two hundred twenty-eight million, five hundred twenty thousand, eight hundred eighty-six".