227238018 has 32 divisors (see below), whose sum is σ = 520058880. Its totient is φ = 64842960.

The previous prime is 227237987. The next prime is 227238041. The reversal of 227238018 is 810832722.

It is a self number, because there is not a number n which added to its sum of digits gives 227238018.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35293 + ... + 41231.

It is an arithmetic number, because the mean of its divisors is an integer number (16251840).

Almost surely, 2^227238018 is an apocalyptic number.

227238018 is an abundant number, since it is smaller than the sum of its proper divisors (292820862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

227238018 is a wasteful number, since it uses less digits than its factorization.

227238018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6862.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 227238018 is about 15074.4160085889. The cubic root of 227238018 is about 610.2301541262.

The spelling of 227238018 in words is "two hundred twenty-seven million, two hundred thirty-eight thousand, eighteen".