20433241 has 2 divisors, whose sum is σ = 20433242. Its totient is φ = 20433240.

The previous prime is 20433239. The next prime is 20433263. The reversal of 20433241 is 14233402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16040025 + 4393216 = 4005^2 + 2096^2 .

It is a cyclic number.

It is not a de Polignac number, because 20433241 - 2¹ = 20433239 is a prime.

Together with 20433239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20433641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10216620 + 10216621.

It is an arithmetic number, because the mean of its divisors is an integer number (10216621).

Almost surely, 2^20433241 is an apocalyptic number.

It is an amenable number.

20433241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20433241 is an equidigital number, since it uses as much as digits as its factorization.

20433241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 20433241 is about 4520.3142589869. The cubic root of 20433241 is about 273.3877720573.

Adding to 20433241 its reverse (14233402), we get a palindrome (34666643).

The spelling of 20433241 in words is "twenty million, four hundred thirty-three thousand, two hundred forty-one".