1220606 has 8 divisors (see below), whose sum is σ = 1858440. Its totient is φ = 601128.

The previous prime is 1220599. The next prime is 1220623. The reversal of 1220606 is 6060221.

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

1220606 is a modest number, since divided by 606 gives 122 as remainder.

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, 4421 + ... + 4688.

It is an arithmetic number, because the mean of its divisors is an integer number (232305).

2^1220606 is an apocalyptic number.

1220606 is a deficient number, since it is larger than the sum of its proper divisors (637834).

1220606 is an equidigital number, since it uses as much as digits as its factorization.

1220606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9178.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1220606 is about 1104.8103909721. The cubic root of 1220606 is about 106.8706621360.

Adding to 1220606 its reverse (6060221), we get a palindrome (7280827).

The spelling of 1220606 in words is "one million, two hundred twenty thousand, six hundred six".