1606636244 has 12 divisors (see below), whose sum is σ = 2837890944. Its totient is φ = 795810264.

The previous prime is 1606636243. The next prime is 1606636247. The reversal of 1606636244 is 4426366061.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1606636198 and 1606636207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606636243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1876484 + ... + 1877339.

It is an arithmetic number, because the mean of its divisors is an integer number (236490912).

Almost surely, 2^1606636244 is an apocalyptic number.

It is an amenable number.

1606636244 is a deficient number, since it is larger than the sum of its proper divisors (1231254700).

1606636244 is a wasteful number, since it uses less digits than its factorization.

1606636244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3753934 (or 3753932 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 1606636244 is about 40082.8672128130. The cubic root of 1606636244 is about 1171.2219060449.

The spelling of 1606636244 in words is "one billion, six hundred six million, six hundred thirty-six thousand, two hundred forty-four".