218235104 has 12 divisors (see below), whose sum is σ = 429650424. Its totient is φ = 109117536.

The previous prime is 218235091. The next prime is 218235107. The reversal of 218235104 is 401532812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218235107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3409892 + ... + 3409955.

It is an arithmetic number, because the mean of its divisors is an integer number (35804202).

Almost surely, 2^218235104 is an apocalyptic number.

It is an amenable number.

218235104 is a deficient number, since it is larger than the sum of its proper divisors (211415320).

218235104 is an equidigital number, since it uses as much as digits as its factorization.

218235104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6819857 (or 6819849 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 218235104 is about 14772.7825408756. The cubic root of 218235104 is about 602.0624431646.

Adding to 218235104 its reverse (401532812), we get a palindrome (619767916).

The spelling of 218235104 in words is "two hundred eighteen million, two hundred thirty-five thousand, one hundred four".