220300018 has 4 divisors (see below), whose sum is σ = 330450030. Its totient is φ = 110150008.

The previous prime is 220300001. The next prime is 220300019. The reversal of 220300018 is 810003022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 211615209 + 8684809 = 14547^2 + 2947^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220299974 and 220300010.

It is not an unprimeable number, because it can be changed into a prime (220300019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55075003 + ... + 55075006.

Almost surely, 2^220300018 is an apocalyptic number.

220300018 is a deficient number, since it is larger than the sum of its proper divisors (110150012).

220300018 is a wasteful number, since it uses less digits than its factorization.

220300018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110150011.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 220300018 is about 14842.5071332306. The cubic root of 220300018 is about 603.9553659838.

The spelling of 220300018 in words is "two hundred twenty million, three hundred thousand, eighteen".