218241822 has 32 divisors (see below), whose sum is σ = 445815072. Its totient is φ = 71207424.

The previous prime is 218241817. The next prime is 218241827. The reversal of 218241822 is 228142812.

It is an interprime number because it is at equal distance from previous prime (218241817) and next prime (218241827).

It is a self number, because there is not a number n which added to its sum of digits gives 218241822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218241827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58188 + ... + 61824.

It is an arithmetic number, because the mean of its divisors is an integer number (13931721).

Almost surely, 2^218241822 is an apocalyptic number.

218241822 is an abundant number, since it is smaller than the sum of its proper divisors (227573250).

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

218241822 is a wasteful number, since it uses less digits than its factorization.

218241822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3852.

The product of its digits is 4096, while the sum is 30.

The square root of 218241822 is about 14773.0099167367. The cubic root of 218241822 is about 602.0686209272.

The spelling of 218241822 in words is "two hundred eighteen million, two hundred forty-one thousand, eight hundred twenty-two".