446440145 has 16 divisors (see below), whose sum is σ = 585543168. Its totient is φ = 325297920.

The previous prime is 446440121. The next prime is 446440157. The reversal of 446440145 is 541044644.

It is not a de Polignac number, because 446440145 - 2⁶ = 446440081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82079 + ... + 87348.

It is an arithmetic number, because the mean of its divisors is an integer number (36596448).

Almost surely, 2^446440145 is an apocalyptic number.

It is an amenable number.

446440145 is a deficient number, since it is larger than the sum of its proper divisors (139103023).

446440145 is a wasteful number, since it uses less digits than its factorization.

446440145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169480.

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 446440145 is about 21129.1302471256. The cubic root of 446440145 is about 764.2833763493.

Adding to 446440145 its reverse (541044644), we get a palindrome (987484789).

The spelling of 446440145 in words is "four hundred forty-six million, four hundred forty thousand, one hundred forty-five".