228486185 has 8 divisors (see below), whose sum is σ = 274440840. Its totient is φ = 182617344.

The previous prime is 228486149. The next prime is 228486187. The reversal of 228486185 is 581684822.

It can be written as a sum of positive squares in 4 ways, for example, as 62900761 + 165585424 = 7931^2 + 12868^2 .

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 228486185 - 2⁶ = 228486121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228486187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15440 + ... + 26369.

It is an arithmetic number, because the mean of its divisors is an integer number (34305105).

Almost surely, 2^228486185 is an apocalyptic number.

It is an amenable number.

228486185 is a deficient number, since it is larger than the sum of its proper divisors (45954655).

228486185 is a wasteful number, since it uses less digits than its factorization.

228486185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42907.

The product of its digits is 245760, while the sum is 44.

The square root of 228486185 is about 15115.7594913388. The cubic root of 228486185 is about 611.3454000531.

The spelling of 228486185 in words is "two hundred twenty-eight million, four hundred eighty-six thousand, one hundred eighty-five".