16313636 has 6 divisors (see below), whose sum is σ = 28548870. Its totient is φ = 8156816.

The previous prime is 16313623. The next prime is 16313639. The reversal of 16313636 is 63631361.

It can be written as a sum of positive squares in only one way, i.e., 10601536 + 5712100 = 3256^2 + 2390^2 .

It is a super-2 number, since 2×16313636² = 532269439080992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16313599 and 16313608.

It is not an unprimeable number, because it can be changed into a prime (16313639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2039201 + ... + 2039208.

It is an arithmetic number, because the mean of its divisors is an integer number (4758145).

Almost surely, 2^16313636 is an apocalyptic number.

It is an amenable number.

16313636 is a deficient number, since it is larger than the sum of its proper divisors (12235234).

16313636 is a wasteful number, since it uses less digits than its factorization.

16313636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4078413 (or 4078411 counting only the distinct ones).

The product of its digits is 5832, while the sum is 29.

The square root of 16313636 is about 4039.0142361720. The cubic root of 16313636 is about 253.6200531798.

Adding to 16313636 its reverse (63631361), we get a palindrome (79944997).

The spelling of 16313636 in words is "sixteen million, three hundred thirteen thousand, six hundred thirty-six".