20434241 has 8 divisors (see below), whose sum is σ = 21266280. Its totient is φ = 19610752.

The previous prime is 20434231. The next prime is 20434247. The reversal of 20434241 is 14243402.

It can be written as a sum of positive squares in 4 ways, for example, as 3385600 + 17048641 = 1840^2 + 4129^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20434241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20434247) 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 7 ways as a sum of consecutive naturals, for example, 2981 + ... + 7053.

It is an arithmetic number, because the mean of its divisors is an integer number (2658285).

Almost surely, 2^20434241 is an apocalyptic number.

It is an amenable number.

20434241 is a deficient number, since it is larger than the sum of its proper divisors (832039).

20434241 is a wasteful number, since it uses less digits than its factorization.

20434241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4275.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 20434241 is about 4520.4248694122. The cubic root of 20434241 is about 273.3922318379.

Adding to 20434241 its reverse (14243402), we get a palindrome (34677643).

The spelling of 20434241 in words is "twenty million, four hundred thirty-four thousand, two hundred forty-one".