20716336 has 20 divisors (see below), whose sum is σ = 42499512. Its totient is φ = 9748736.

The previous prime is 20716313. The next prime is 20716343. The reversal of 20716336 is 63361702.

It is an unprimeable number.

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, 37810 + ... + 38353.

Almost surely, 2^20716336 is an apocalyptic number.

It is an amenable number.

20716336 is an abundant number, since it is smaller than the sum of its proper divisors (21783176).

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

20716336 is a wasteful number, since it uses less digits than its factorization.

20716336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76188 (or 76182 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 20716336 is about 4551.5201856083. The cubic root of 20716336 is about 274.6445479198.

The spelling of 20716336 in words is "twenty million, seven hundred sixteen thousand, three hundred thirty-six".