20243384 has 32 divisors (see below), whose sum is σ = 43626720. Its totient is φ = 8626176.

The previous prime is 20243383. The next prime is 20243387. The reversal of 20243384 is 48334202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20243383) 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, 9872 + ... + 11744.

It is an arithmetic number, because the mean of its divisors is an integer number (1363335).

Almost surely, 2^20243384 is an apocalyptic number.

It is an amenable number.

20243384 is an abundant number, since it is smaller than the sum of its proper divisors (23383336).

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

20243384 is a wasteful number, since it uses less digits than its factorization.

20243384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079 (or 2075 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 20243384 is about 4499.2648288359. The cubic root of 20243384 is about 272.5384015684.

Adding to 20243384 its reverse (48334202), we get a palindrome (68577586).

The spelling of 20243384 in words is "twenty million, two hundred forty-three thousand, three hundred eighty-four".