20216676 has 24 divisors (see below), whose sum is σ = 47244960. Its totient is φ = 6728512.

The previous prime is 20216659. The next prime is 20216699. The reversal of 20216676 is 67661202.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 14815 + ... + 16121.

It is an arithmetic number, because the mean of its divisors is an integer number (1968540).

Almost surely, 2^20216676 is an apocalyptic number.

It is an amenable number.

20216676 is an abundant number, since it is smaller than the sum of its proper divisors (27028284).

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

20216676 is a wasteful number, since it uses less digits than its factorization.

20216676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2603 (or 2601 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 20216676 is about 4496.2958087742. The cubic root of 20216676 is about 272.4184914597.

Adding to 20216676 its reverse (67661202), we get a palindrome (87877878).

The spelling of 20216676 in words is "twenty million, two hundred sixteen thousand, six hundred seventy-six".