1606436 has 12 divisors (see below), whose sum is σ = 3027612. Its totient is φ = 741408.

The previous prime is 1606433. The next prime is 1606439. The reversal of 1606436 is 6346061.

It is an interprime number because it is at equal distance from previous prime (1606433) and next prime (1606439).

It can be written as a sum of positive squares in 2 ways, for example, as 409600 + 1196836 = 640^2 + 1094^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1606433) 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, 15395 + ... + 15498.

It is an arithmetic number, because the mean of its divisors is an integer number (252301).

2^1606436 is an apocalyptic number.

It is an amenable number.

1606436 is a deficient number, since it is larger than the sum of its proper divisors (1421176).

1606436 is a wasteful number, since it uses less digits than its factorization.

1606436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30910 (or 30908 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 1606436 is about 1267.4525632149. The cubic root of 1606436 is about 117.1173245392.

The spelling of 1606436 in words is "one million, six hundred six thousand, four hundred thirty-six".