218146832 has 40 divisors (see below), whose sum is σ = 429660000. Its totient is φ = 107281152.

The previous prime is 218146829. The next prime is 218146837. The reversal of 218146832 is 238641812.

It is a junction number, because it is equal to n+sod(n) for n = 218146792 and 218146801.

It is not an unprimeable number, because it can be changed into a prime (218146837) 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 in 7 ways as a sum of consecutive naturals, for example, 436919 + ... + 437417.

It is an arithmetic number, because the mean of its divisors is an integer number (10741500).

Almost surely, 2^218146832 is an apocalyptic number.

It is an amenable number.

218146832 is a deficient number, since it is larger than the sum of its proper divisors (211513168).

218146832 is a wasteful number, since it uses less digits than its factorization.

218146832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903 (or 897 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 218146832 is about 14769.7945821870. The cubic root of 218146832 is about 601.9812579015.

The spelling of 218146832 in words is "two hundred eighteen million, one hundred forty-six thousand, eight hundred thirty-two".