16840036 has 12 divisors (see below), whose sum is σ = 29825712. Its totient is φ = 8318408.

The previous prime is 16840009. The next prime is 16840067. The reversal of 16840036 is 63004861.

It is a junction number, because it is equal to n+sod(n) for n = 16839986 and 16840013.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25030 + ... + 25693.

It is an arithmetic number, because the mean of its divisors is an integer number (2485476).

Almost surely, 2^16840036 is an apocalyptic number.

It is an amenable number.

16840036 is a deficient number, since it is larger than the sum of its proper divisors (12985676).

16840036 is a wasteful number, since it uses less digits than its factorization.

16840036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50810 (or 50808 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 16840036 is about 4103.6612920659. The cubic root of 16840036 is about 256.3191210720.

Adding to 16840036 its reverse (63004861), we get a palindrome (79844897).

It can be divided in two parts, 168 and 40036, that added together give a palindrome (40204).

The spelling of 16840036 in words is "sixteen million, eight hundred forty thousand, thirty-six".