220418384 has 20 divisors (see below), whose sum is σ = 445629216. Its totient is φ = 105417312.

The previous prime is 220418381. The next prime is 220418399. The reversal of 220418384 is 483814022.

220418384 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 220418384.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220418381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299114 + ... + 299849.

Almost surely, 2^220418384 is an apocalyptic number.

It is an amenable number.

220418384 is an abundant number, since it is smaller than the sum of its proper divisors (225210832).

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

220418384 is a wasteful number, since it uses less digits than its factorization.

220418384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598994 (or 598988 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 220418384 is about 14846.4939969004. The cubic root of 220418384 is about 604.0635139267.

The spelling of 220418384 in words is "two hundred twenty million, four hundred eighteen thousand, three hundred eighty-four".