218010044 has 24 divisors (see below), whose sum is σ = 442165248. Its totient is φ = 92116080.

The previous prime is 218010029. The next prime is 218010049. The reversal of 218010044 is 440010812.

It is a junction number, because it is equal to n+sod(n) for n = 218009998 and 218010025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218010049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52844 + ... + 56819.

It is an arithmetic number, because the mean of its divisors is an integer number (18423552).

Almost surely, 2^218010044 is an apocalyptic number.

It is an amenable number.

218010044 is an abundant number, since it is smaller than the sum of its proper divisors (224155204).

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

218010044 is a wasteful number, since it uses less digits than its factorization.

218010044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109745 (or 109743 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 218010044 is about 14765.1631890745. The cubic root of 218010044 is about 601.8554083706.

Adding to 218010044 its reverse (440010812), we get a palindrome (658020856).

The spelling of 218010044 in words is "two hundred eighteen million, ten thousand, forty-four".