20243683 has 8 divisors (see below), whose sum is σ = 21370320. Its totient is φ = 19123200.

The previous prime is 20243681. The next prime is 20243687. The reversal of 20243683 is 38634202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20243683 - 2¹ = 20243681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20243681) 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, 6291 + ... + 8947.

It is an arithmetic number, because the mean of its divisors is an integer number (2671290).

Almost surely, 2^20243683 is an apocalyptic number.

20243683 is a deficient number, since it is larger than the sum of its proper divisors (1126637).

20243683 is a wasteful number, since it uses less digits than its factorization.

20243683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3077.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 20243683 is about 4499.2980563639. The cubic root of 20243683 is about 272.5397433826.

Adding to 20243683 its reverse (38634202), we get a palindrome (58877885).

The spelling of 20243683 in words is "twenty million, two hundred forty-three thousand, six hundred eighty-three".