20427041 has 2 divisors, whose sum is σ = 20427042. Its totient is φ = 20427040.

The previous prime is 20427037. The next prime is 20427067. The reversal of 20427041 is 14072402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16443025 + 3984016 = 4055^2 + 1996^2 .

It is a cyclic number.

It is not a de Polignac number, because 20427041 - 2² = 20427037 is a prime.

It is not a weakly prime, because it can be changed into another prime (20427031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10213520 + 10213521.

It is an arithmetic number, because the mean of its divisors is an integer number (10213521).

Almost surely, 2^20427041 is an apocalyptic number.

It is an amenable number.

20427041 is a deficient number, since it is larger than the sum of its proper divisors (1).

20427041 is an equidigital number, since it uses as much as digits as its factorization.

20427041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 20427041 is about 4519.6284139296. The cubic root of 20427041 is about 273.3601181697.

Adding to 20427041 its reverse (14072402), we get a palindrome (34499443).

The spelling of 20427041 in words is "twenty million, four hundred twenty-seven thousand, forty-one".