20338752 has 112 divisors (see below), whose sum is σ = 63317120. Its totient is φ = 5640192.

The previous prime is 20338751. The next prime is 20338771. The reversal of 20338752 is 25783302.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (20338751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49524 + ... + 49932.

Almost surely, 2^20338752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20338752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31658560).

20338752 is an abundant number, since it is smaller than the sum of its proper divisors (42978368).

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

20338752 is a wasteful number, since it uses less digits than its factorization.

20338752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 20338752 is about 4509.8505518476. The cubic root of 20338752 is about 272.9657137368.

The spelling of 20338752 in words is "twenty million, three hundred thirty-eight thousand, seven hundred fifty-two".