220658138 has 8 divisors (see below), whose sum is σ = 338029632. Its totient is φ = 107981596.

The previous prime is 220658107. The next prime is 220658143. The reversal of 220658138 is 831856022.

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 = 220658098 and 220658107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173620 + ... + 1173807.

It is an arithmetic number, because the mean of its divisors is an integer number (42253704).

Almost surely, 2^220658138 is an apocalyptic number.

220658138 is a deficient number, since it is larger than the sum of its proper divisors (117371494).

220658138 is a wasteful number, since it uses less digits than its factorization.

220658138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347476.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 220658138 is about 14854.5662339901. The cubic root of 220658138 is about 604.2824523571.

It can be divided in two parts, 22065 and 8138, that added together give a palindrome (30203).

The spelling of 220658138 in words is "two hundred twenty million, six hundred fifty-eight thousand, one hundred thirty-eight".