220820606 has 8 divisors (see below), whose sum is σ = 332690760. Its totient is φ = 109923688.

The previous prime is 220820569. The next prime is 220820651. The reversal of 220820606 is 606028022.

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

It is a congruent number.

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, 242741 + ... + 243648.

It is an arithmetic number, because the mean of its divisors is an integer number (41586345).

Almost surely, 2^220820606 is an apocalyptic number.

220820606 is a deficient number, since it is larger than the sum of its proper divisors (111870154).

220820606 is a wasteful number, since it uses less digits than its factorization.

220820606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486618.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 220820606 is about 14860.0338492212. The cubic root of 220820606 is about 604.4307246677.

Adding to 220820606 its reverse (606028022), we get a palindrome (826848628).

The spelling of 220820606 in words is "two hundred twenty million, eight hundred twenty thousand, six hundred six".