1606194 has 48 divisors (see below), whose sum is σ = 3832920. Its totient is φ = 483840.

The previous prime is 1606153. The next prime is 1606201. The reversal of 1606194 is 4916061.

It can be written as a sum of positive squares in 4 ways, for example, as 1134225 + 471969 = 1065^2 + 687^2 .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 8784 + ... + 8964.

2^1606194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1606194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1916460).

1606194 is an abundant number, since it is smaller than the sum of its proper divisors (2226726).

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

1606194 is a wasteful number, since it uses less digits than its factorization.

1606194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1606194 is about 1267.3570925355. The cubic root of 1606194 is about 117.1114432352. Note that the first 3 decimals are identical.

The spelling of 1606194 in words is "one million, six hundred six thousand, one hundred ninety-four".