20424841 has 2 divisors, whose sum is σ = 20424842. Its totient is φ = 20424840.

The previous prime is 20424827. The next prime is 20424869. The reversal of 20424841 is 14842402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17397241 + 3027600 = 4171^2 + 1740^2 .

It is a cyclic number.

It is not a de Polignac number, because 20424841 - 2⁵ = 20424809 is a prime.

It is not a weakly prime, because it can be changed into another prime (20424941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10212420 + 10212421.

It is an arithmetic number, because the mean of its divisors is an integer number (10212421).

Almost surely, 2^20424841 is an apocalyptic number.

It is an amenable number.

20424841 is a deficient number, since it is larger than the sum of its proper divisors (1).

20424841 is an equidigital number, since it uses as much as digits as its factorization.

20424841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 20424841 is about 4519.3850245360. The cubic root of 20424841 is about 273.3503041548.

The spelling of 20424841 in words is "twenty million, four hundred twenty-four thousand, eight hundred forty-one".