20682016 has 24 divisors (see below), whose sum is σ = 41295744. Its totient is φ = 10194240.

The previous prime is 20681993. The next prime is 20682019. The reversal of 20682016 is 61028602.

It is not an unprimeable number, because it can be changed into a prime (20682019) 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 3 ways as a sum of consecutive naturals, for example, 2280 + ... + 6823.

It is an arithmetic number, because the mean of its divisors is an integer number (1720656).

Almost surely, 2^20682016 is an apocalyptic number.

It is an amenable number.

20682016 is a deficient number, since it is larger than the sum of its proper divisors (20613728).

20682016 is an equidigital number, since it uses as much as digits as its factorization.

20682016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9184 (or 9176 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20682016 is about 4547.7484539055. The cubic root of 20682016 is about 274.4927995475.

The spelling of 20682016 in words is "twenty million, six hundred eighty-two thousand, sixteen".