218893032 has 48 divisors (see below), whose sum is σ = 593742240. Its totient is φ = 72852768.

The previous prime is 218893007. The next prime is 218893033. The reversal of 218893032 is 230398812.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (218893033) 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 11 ways as a sum of consecutive naturals, for example, 54733 + ... + 58595.

It is an arithmetic number, because the mean of its divisors is an integer number (12369630).

Almost surely, 2^218893032 is an apocalyptic number.

It is an amenable number.

218893032 is an abundant number, since it is smaller than the sum of its proper divisors (374849208).

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

218893032 is a wasteful number, since it uses less digits than its factorization.

218893032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4662 (or 4655 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 218893032 is about 14795.0340317283. The cubic root of 218893032 is about 602.6668621813. Note that the first 3 decimals are identical.

The spelling of 218893032 in words is "two hundred eighteen million, eight hundred ninety-three thousand, thirty-two".