20943252 has 144 divisors (see below), whose sum is σ = 63954240. Its totient is φ = 5875200.

The previous prime is 20943203. The next prime is 20943253. The reversal of 20943252 is 25234902.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20943253) 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 47 ways as a sum of consecutive naturals, for example, 343302 + ... + 343362.

Almost surely, 2^20943252 is an apocalyptic number.

20943252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20943252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31977120).

20943252 is an abundant number, since it is smaller than the sum of its proper divisors (43010988).

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

20943252 is a wasteful number, since it uses less digits than its factorization.

20943252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 20943252 is about 4576.3797919316. The cubic root of 20943252 is about 275.6436800704.

The spelling of 20943252 in words is "twenty million, nine hundred forty-three thousand, two hundred fifty-two".