20363668 has 24 divisors (see below), whose sum is σ = 40399520. Its totient is φ = 8903520.

The previous prime is 20363663. The next prime is 20363677. The reversal of 20363668 is 86636302.

It is a super-3 number, since 3×20363668³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20363663) by changing a digit.

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, 9318 + ... + 11293.

Almost surely, 2^20363668 is an apocalyptic number.

It is an amenable number.

20363668 is a deficient number, since it is larger than the sum of its proper divisors (20035852).

20363668 is a wasteful number, since it uses less digits than its factorization.

20363668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20647 (or 20645 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 20363668 is about 4512.6121038707. The cubic root of 20363668 is about 273.0771338530.

The spelling of 20363668 in words is "twenty million, three hundred sixty-three thousand, six hundred sixty-eight".