218854482 has 192 divisors, whose sum is σ = 598855680. Its totient is φ = 52617600.

The previous prime is 218854403. The next prime is 218854487. The reversal of 218854482 is 284458812.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (218854487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3709369 + ... + 3709427.

It is an arithmetic number, because the mean of its divisors is an integer number (3119040).

Almost surely, 2^218854482 is an apocalyptic number.

218854482 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 218854482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299427840).

218854482 is an abundant number, since it is smaller than the sum of its proper divisors (380001198).

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

218854482 is a wasteful number, since it uses less digits than its factorization.

218854482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 150 counting only the distinct ones).

The product of its digits is 163840, while the sum is 42.

The square root of 218854482 is about 14793.7311723581. The cubic root of 218854482 is about 602.6314808639.

The spelling of 218854482 in words is "two hundred eighteen million, eight hundred fifty-four thousand, four hundred eighty-two".