218029252 has 24 divisors (see below), whose sum is σ = 436625280. Its totient is φ = 93319680.

The previous prime is 218029241. The next prime is 218029283. The reversal of 218029252 is 252920812.

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, 18852 + ... + 28132.

It is an arithmetic number, because the mean of its divisors is an integer number (18192720).

Almost surely, 2^218029252 is an apocalyptic number.

It is an amenable number.

218029252 is an abundant number, since it is smaller than the sum of its proper divisors (218596028).

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

218029252 is a wasteful number, since it uses less digits than its factorization.

218029252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10131 (or 10129 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 218029252 is about 14765.8136247211. The cubic root of 218029252 is about 601.8730835489.

The spelling of 218029252 in words is "two hundred eighteen million, twenty-nine thousand, two hundred fifty-two".