446221241 has 2 divisors, whose sum is σ = 446221242. Its totient is φ = 446221240.

The previous prime is 446221141. The next prime is 446221247. The reversal of 446221241 is 142122644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243984400 + 202236841 = 15620^2 + 14221^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-446221241 is a prime.

It is a super-2 number, since 2×446221241² = 398226791839160162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 446221241.

It is not a weakly prime, because it can be changed into another prime (446221247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223110620 + 223110621.

It is an arithmetic number, because the mean of its divisors is an integer number (223110621).

Almost surely, 2^446221241 is an apocalyptic number.

It is an amenable number.

446221241 is a deficient number, since it is larger than the sum of its proper divisors (1).

446221241 is an equidigital number, since it uses as much as digits as its factorization.

446221241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3072, while the sum is 26.

The square root of 446221241 is about 21123.9494650030. The cubic root of 446221241 is about 764.1584383313.

Adding to 446221241 its reverse (142122644), we get a palindrome (588343885).

The spelling of 446221241 in words is "four hundred forty-six million, two hundred twenty-one thousand, two hundred forty-one".