218948022 has 40 divisors (see below), whose sum is σ = 493604496. Its totient is φ = 72536688.

The previous prime is 218948021. The next prime is 218948033. The reversal of 218948022 is 220849812.

218948022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218948021) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23008 + ... + 31100.

Almost surely, 2^218948022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 218948022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246802248).

218948022 is an abundant number, since it is smaller than the sum of its proper divisors (274656474).

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

218948022 is a wasteful number, since it uses less digits than its factorization.

218948022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8274 (or 8265 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 218948022 is about 14796.8923088600. The cubic root of 218948022 is about 602.7173249967.

The spelling of 218948022 in words is "two hundred eighteen million, nine hundred forty-eight thousand, twenty-two".