446121644 has 12 divisors (see below), whose sum is σ = 792365784. Its totient is φ = 219731424.

The previous prime is 446121619. The next prime is 446121649.

446121644 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 446121644.

It is not an unprimeable number, because it can be changed into a prime (446121649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832049 + ... + 832584.

It is an arithmetic number, because the mean of its divisors is an integer number (66030482).

Almost surely, 2^446121644 is an apocalyptic number.

It is an amenable number.

446121644 is a deficient number, since it is larger than the sum of its proper divisors (346244140).

446121644 is a wasteful number, since it uses less digits than its factorization.

446121644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664704 (or 1664702 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 446121644 is about 21121.5918907643. The cubic root of 446121644 is about 764.1015804738.

The spelling of 446121644 in words is "four hundred forty-six million, one hundred twenty-one thousand, six hundred forty-four".