445440044 has 24 divisors (see below), whose sum is σ = 892915968. Its totient is φ = 190466640.

The previous prime is 445440041. The next prime is 445440071. The reversal of 445440044 is 440044544.

It is a junction number, because it is equal to n+sod(n) for n = 445439989 and 445440016.

It is not an unprimeable number, because it can be changed into a prime (445440041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5552 + ... + 30359.

It is an arithmetic number, because the mean of its divisors is an integer number (37204832).

Almost surely, 2^445440044 is an apocalyptic number.

It is an amenable number.

445440044 is an abundant number, since it is smaller than the sum of its proper divisors (447475924).

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

445440044 is a wasteful number, since it uses less digits than its factorization.

445440044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36365 (or 36363 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 29.

The square root of 445440044 is about 21105.4505756215. The cubic root of 445440044 is about 763.7122418950.

Adding to 445440044 its reverse (440044544), we get a palindrome (885484588).

The spelling of 445440044 in words is "four hundred forty-five million, four hundred forty thousand, forty-four".