20238552 has 64 divisors (see below), whose sum is σ = 57552000. Its totient is φ = 6586272.

The previous prime is 20238541. The next prime is 20238587. The reversal of 20238552 is 25583202.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8199 + ... + 10377.

It is an arithmetic number, because the mean of its divisors is an integer number (899250).

Almost surely, 2^20238552 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 20238552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28776000).

20238552 is an abundant number, since it is smaller than the sum of its proper divisors (37313448).

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

20238552 is a wasteful number, since it uses less digits than its factorization.

20238552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2237 (or 2227 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 20238552 is about 4498.7278201732. The cubic root of 20238552 is about 272.5167153004.

The spelling of 20238552 in words is "twenty million, two hundred thirty-eight thousand, five hundred fifty-two".