16386636 has 48 divisors (see below), whose sum is σ = 43898624. Its totient is φ = 4660416.

The previous prime is 16386619. The next prime is 16386637. The reversal of 16386636 is 63668361.

It is a junction number, because it is equal to n+sod(n) for n = 16386594 and 16386603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16386637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31071 + ... + 31593.

Almost surely, 2^16386636 is an apocalyptic number.

It is an amenable number.

16386636 is an abundant number, since it is smaller than the sum of its proper divisors (27511988).

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

16386636 is a wasteful number, since it uses less digits than its factorization.

16386636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910 (or 908 counting only the distinct ones).

The product of its digits is 93312, while the sum is 39.

The square root of 16386636 is about 4048.0410076974. The cubic root of 16386636 is about 253.9977886430.

The spelling of 16386636 in words is "sixteen million, three hundred eighty-six thousand, six hundred thirty-six".