220606 has 8 divisors (see below), whose sum is σ = 335664. Its totient is φ = 108720.

The previous prime is 220589. The next prime is 220613. The reversal of 220606 is 606022.

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

220606 is a modest number, since divided by 606 gives 22 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 220606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610 + ... + 901.

It is an arithmetic number, because the mean of its divisors is an integer number (41958).

2²²⁰⁶⁰⁶ is an apocalyptic number.

220606 is a deficient number, since it is larger than the sum of its proper divisors (115058).

220606 is a wasteful number, since it uses less digits than its factorization.

220606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 220606 is about 469.6871299067. The cubic root of 220606 is about 60.4234854505.

Adding to 220606 its reverse (606022), we get a palindrome (826628).

The spelling of 220606 in words is "two hundred twenty thousand, six hundred six".