218270010 has 48 divisors (see below), whose sum is σ = 609378336. Its totient is φ = 49889952.

The previous prime is 218269999. The next prime is 218270011. The reversal of 218270010 is 10072812.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (218270011) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 72772 + ... + 75711.

It is an arithmetic number, because the mean of its divisors is an integer number (12695382).

Almost surely, 2^218270010 is an apocalyptic number.

218270010 is an abundant number, since it is smaller than the sum of its proper divisors (391108326).

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

218270010 is a wasteful number, since it uses less digits than its factorization.

218270010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148507 (or 148500 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 218270010 is about 14773.9639230641. The cubic root of 218270010 is about 602.0945407678.

The spelling of 218270010 in words is "two hundred eighteen million, two hundred seventy thousand, ten".