220930018 has 8 divisors (see below), whose sum is σ = 332002512. Its totient is φ = 110262516.

The previous prime is 220930009. The next prime is 220930027. The reversal of 220930018 is 810039022.

It is an interprime number because it is at equal distance from previous prime (220930009) and next prime (220930027).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 220929974 and 220930001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99880 + ... + 102067.

It is an arithmetic number, because the mean of its divisors is an integer number (41500314).

Almost surely, 2^220930018 is an apocalyptic number.

220930018 is a deficient number, since it is larger than the sum of its proper divisors (111072494).

220930018 is a wasteful number, since it uses less digits than its factorization.

220930018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202496.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 220930018 is about 14863.7148115806. The cubic root of 220930018 is about 604.5305357863.

The spelling of 220930018 in words is "two hundred twenty million, nine hundred thirty thousand, eighteen".