20243652 has 96 divisors (see below), whose sum is σ = 56899584. Its totient is φ = 5520000.

The previous prime is 20243623. The next prime is 20243659. The reversal of 20243652 is 25634202.

It is not an unprimeable number, because it can be changed into a prime (20243659) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 80527 + ... + 80777.

It is an arithmetic number, because the mean of its divisors is an integer number (592704).

Almost surely, 2^20243652 is an apocalyptic number.

20243652 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 20243652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28449792).

20243652 is an abundant number, since it is smaller than the sum of its proper divisors (36655932).

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

20243652 is a wasteful number, since it uses less digits than its factorization.

20243652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 20243652 is about 4499.2946113808. The cubic root of 20243652 is about 272.5396042654.

Adding to 20243652 its reverse (25634202), we get a palindrome (45877854).

The spelling of 20243652 in words is "twenty million, two hundred forty-three thousand, six hundred fifty-two".