1606842 has 12 divisors (see below), whose sum is σ = 3481530. Its totient is φ = 535608.

The previous prime is 1606841. The next prime is 1606853. The reversal of 1606842 is 2486061.

It can be written as a sum of positive squares in only one way, i.e., 1461681 + 145161 = 1209^2 + 381^2 .

It is not an unprimeable number, because it can be changed into a prime (1606841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44617 + ... + 44652.

2^1606842 is an apocalyptic number.

1606842 is an abundant number, since it is smaller than the sum of its proper divisors (1874688).

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

1606842 is a wasteful number, since it uses less digits than its factorization.

1606842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89277 (or 89274 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1606842 is about 1267.6127168816. The cubic root of 1606842 is about 117.1271901939.

It can be divided in two parts, 16068 and 42, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 1606842 in words is "one million, six hundred six thousand, eight hundred forty-two".