446161649 has 2 divisors, whose sum is σ = 446161650. Its totient is φ = 446161648.

The previous prime is 446161633. The next prime is 446161673. The reversal of 446161649 is 946161644.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 424071649 + 22090000 = 20593^2 + 4700^2 .

It is a cyclic number.

It is not a de Polignac number, because 446161649 - 2⁴ = 446161633 is a prime.

It is not a weakly prime, because it can be changed into another prime (446167649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223080824 + 223080825.

It is an arithmetic number, because the mean of its divisors is an integer number (223080825).

Almost surely, 2^446161649 is an apocalyptic number.

It is an amenable number.

446161649 is a deficient number, since it is larger than the sum of its proper divisors (1).

446161649 is an equidigital number, since it uses as much as digits as its factorization.

446161649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 41.

The square root of 446161649 is about 21122.5388862229. The cubic root of 446161649 is about 764.1244195137.

The spelling of 446161649 in words is "four hundred forty-six million, one hundred sixty-one thousand, six hundred forty-nine".