444461161 has 4 divisors (see below), whose sum is σ = 446567824. Its totient is φ = 442354500.

The previous prime is 444461153. The next prime is 444461231. The reversal of 444461161 is 161164444.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 444461161 - 2³ = 444461153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444461861) 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 in 3 ways as a sum of consecutive naturals, for example, 1053015 + ... + 1053436.

It is an arithmetic number, because the mean of its divisors is an integer number (111641956).

Almost surely, 2^444461161 is an apocalyptic number.

It is an amenable number.

444461161 is a deficient number, since it is larger than the sum of its proper divisors (2106663).

444461161 is a wasteful number, since it uses less digits than its factorization.

444461161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106662.

The product of its digits is 9216, while the sum is 31.

The square root of 444461161 is about 21082.2475319877. The cubic root of 444461161 is about 763.1523960885.

The spelling of 444461161 in words is "four hundred forty-four million, four hundred sixty-one thousand, one hundred sixty-one".