20338484 has 12 divisors (see below), whose sum is σ = 36420384. Its totient is φ = 9932664.

The previous prime is 20338481. The next prime is 20338489. The reversal of 20338484 is 48483302.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 20338484.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20338481) 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 3 ways as a sum of consecutive naturals, for example, 58952 + ... + 59295.

It is an arithmetic number, because the mean of its divisors is an integer number (3035032).

Almost surely, 2^20338484 is an apocalyptic number.

It is an amenable number.

20338484 is a deficient number, since it is larger than the sum of its proper divisors (16081900).

20338484 is a wasteful number, since it uses less digits than its factorization.

20338484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118294 (or 118292 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 20338484 is about 4509.8208390135. The cubic root of 20338484 is about 272.9645147918.

The spelling of 20338484 in words is "twenty million, three hundred thirty-eight thousand, four hundred eighty-four".