1606818 has 8 divisors (see below), whose sum is σ = 3213648. Its totient is φ = 535604.

The previous prime is 1606817. The next prime is 1606837. The reversal of 1606818 is 8186061.

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

1606818 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1606817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133896 + ... + 133907.

It is an arithmetic number, because the mean of its divisors is an integer number (401706).

2^1606818 is an apocalyptic number.

1606818 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1606818 is a wasteful number, since it uses less digits than its factorization.

1606818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267808.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1606818 is about 1267.6032502325. The cubic root of 1606818 is about 117.1266070487.

The spelling of 1606818 in words is "one million, six hundred six thousand, eight hundred eighteen".