20836016 has 20 divisors (see below), whose sum is σ = 42745032. Its totient is φ = 9805056.

The previous prime is 20836009. The next prime is 20836019. The reversal of 20836016 is 61063802.

It is not an unprimeable number, because it can be changed into a prime (20836019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38030 + ... + 38573.

Almost surely, 2^20836016 is an apocalyptic number.

It is an amenable number.

20836016 is an abundant number, since it is smaller than the sum of its proper divisors (21909016).

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

20836016 is a wasteful number, since it uses less digits than its factorization.

20836016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76628 (or 76622 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20836016 is about 4564.6485078262. The cubic root of 20836016 is about 275.1724141945.

Adding to 20836016 its reverse (61063802), we get a palindrome (81899818).

The spelling of 20836016 in words is "twenty million, eight hundred thirty-six thousand, sixteen".