218934272 has 44 divisors (see below), whose sum is σ = 447064800. Its totient is φ = 107114496.

The previous prime is 218934229. The next prime is 218934337. The reversal of 218934272 is 272439812.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45854 + ... + 50402.

Almost surely, 2^218934272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 218934272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223532400).

218934272 is an abundant number, since it is smaller than the sum of its proper divisors (228130528).

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

218934272 is an equidigital number, since it uses as much as digits as its factorization.

218934272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4616 (or 4598 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 218934272 is about 14796.4276769766. The cubic root of 218934272 is about 602.7047077910.

The spelling of 218934272 in words is "two hundred eighteen million, nine hundred thirty-four thousand, two hundred seventy-two".