20243241 has 12 divisors (see below), whose sum is σ = 29297268. Its totient is φ = 13469184.

The previous prime is 20243233. The next prime is 20243263. The reversal of 20243241 is 14234202.

It can be written as a sum of positive squares in 2 ways, for example, as 7817616 + 12425625 = 2796^2 + 3525^2 .

It is not a de Polignac number, because 20243241 - 2³ = 20243233 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20243291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3441 + ... + 7233.

It is an arithmetic number, because the mean of its divisors is an integer number (2441439).

Almost surely, 2^20243241 is an apocalyptic number.

It is an amenable number.

20243241 is a deficient number, since it is larger than the sum of its proper divisors (9054027).

20243241 is a wasteful number, since it uses less digits than its factorization.

20243241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4392 (or 4389 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20243241 is about 4499.2489373228. The cubic root of 20243241 is about 272.5377598265.

Adding to 20243241 its reverse (14234202), we get a palindrome (34477443).

The spelling of 20243241 in words is "twenty million, two hundred forty-three thousand, two hundred forty-one".