218463882 has 64 divisors (see below), whose sum is σ = 555147264. Its totient is φ = 55753920.

The previous prime is 218463877. The next prime is 218463907. The reversal of 218463882 is 288364812.

It is a happy number.

218463882 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10473 + ... + 23379.

It is an arithmetic number, because the mean of its divisors is an integer number (8674176).

Almost surely, 2^218463882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 218463882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277573632).

218463882 is an abundant number, since it is smaller than the sum of its proper divisors (336683382).

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

218463882 is a wasteful number, since it uses less digits than its factorization.

218463882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12963.

The product of its digits is 147456, while the sum is 42.

The square root of 218463882 is about 14780.5237390290. The cubic root of 218463882 is about 602.2727523468.

It can be divided in two parts, 2184 and 63882, that added together give a palindrome (66066).

The spelling of 218463882 in words is "two hundred eighteen million, four hundred sixty-three thousand, eight hundred eighty-two".