1820606 has 8 divisors (see below), whose sum is σ = 2775864. Its totient is φ = 895320.

The previous prime is 1820597. The next prime is 1820617. The reversal of 1820606 is 6060281.

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

1820606 is a modest number, since divided by 606 gives 182 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, 7340 + ... + 7583.

It is an arithmetic number, because the mean of its divisors is an integer number (346983).

2^1820606 is an apocalyptic number.

1820606 is a deficient number, since it is larger than the sum of its proper divisors (955258).

1820606 is a wasteful number, since it uses less digits than its factorization.

1820606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14986.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1820606 is about 1349.2983361733. The cubic root of 1820606 is about 122.1064644428.

Adding to 1820606 its reverse (6060281), we get a palindrome (7880887).

The spelling of 1820606 in words is "one million, eight hundred twenty thousand, six hundred six".