445216044 has 48 divisors (see below), whose sum is σ = 1278572288. Its totient is φ = 117419328.

The previous prime is 445216001. The next prime is 445216049. The reversal of 445216044 is 440612544.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (445216049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202762 + ... + 204945.

Almost surely, 2^445216044 is an apocalyptic number.

It is an amenable number.

445216044 is an abundant number, since it is smaller than the sum of its proper divisors (833356244).

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

445216044 is a wasteful number, since it uses less digits than its factorization.

445216044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407734 (or 407732 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 445216044 is about 21100.1432222627. The cubic root of 445216044 is about 763.5842035441.

Adding to 445216044 its reverse (440612544), we get a palindrome (885828588).

The spelling of 445216044 in words is "four hundred forty-five million, two hundred sixteen thousand, forty-four".