20268383 has 4 divisors (see below), whose sum is σ = 21335160. Its totient is φ = 19201608.

The previous prime is 20268379. The next prime is 20268397. The reversal of 20268383 is 38386202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20268383 - 2² = 20268379 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20268323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533360 + ... + 533397.

It is an arithmetic number, because the mean of its divisors is an integer number (5333790).

Almost surely, 2^20268383 is an apocalyptic number.

20268383 is a deficient number, since it is larger than the sum of its proper divisors (1066777).

20268383 is a wasteful number, since it uses less digits than its factorization.

20268383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066776.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 20268383 is about 4502.0420922066. The cubic root of 20268383 is about 272.6505433071.

The spelling of 20268383 in words is "twenty million, two hundred sixty-eight thousand, three hundred eighty-three".