446545644 has 96 divisors (see below), whose sum is σ = 1116993024. Its totient is φ = 138547200.

The previous prime is 446545639. The next prime is 446545651.

446545644 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 446545596 and 446545605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2313612 + ... + 2313804.

It is an arithmetic number, because the mean of its divisors is an integer number (11635344).

Almost surely, 2^446545644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 446545644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558496512).

446545644 is an abundant number, since it is smaller than the sum of its proper divisors (670447380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

446545644 is a wasteful number, since it uses less digits than its factorization.

446545644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 405 counting only the distinct ones).

The product of its digits is 921600, while the sum is 42.

The square root of 446545644 is about 21131.6266292967. The cubic root of 446545644 is about 764.3435746254.

The spelling of 446545644 in words is "four hundred forty-six million, five hundred forty-five thousand, six hundred forty-four".