20016676 has 9 divisors (see below), whose sum is σ = 35044849. Its totient is φ = 10003864.

The previous prime is 20016649. The next prime is 20016677. The reversal of 20016676 is 67661002.

The square root of 20016676 is 4474.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 15920100 + 4096576 = 3990^2 + 2024^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20016677) 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 2 ways as a sum of consecutive naturals, for example, 7830 + ... + 10066.

Almost surely, 2^20016676 is an apocalyptic number.

20016676 is the 4474-th square number.

It is an amenable number.

20016676 is a deficient number, since it is larger than the sum of its proper divisors (15028173).

20016676 is an frugal number, since it uses more digits than its factorization.

20016676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4478 (or 2239 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The cubic root of 20016676 is about 271.5171834148.

Adding to 20016676 its reverse (67661002), we get a palindrome (87677678).

The spelling of 20016676 in words is "twenty million, sixteen thousand, six hundred seventy-six".