445009452 has 12 divisors (see below), whose sum is σ = 1038355416. Its totient is φ = 148336480.

The previous prime is 445009429. The next prime is 445009463. The reversal of 445009452 is 254900544.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18542049 + ... + 18542072.

It is an arithmetic number, because the mean of its divisors is an integer number (86529618).

Almost surely, 2^445009452 is an apocalyptic number.

It is an amenable number.

445009452 is an abundant number, since it is smaller than the sum of its proper divisors (593345964).

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

445009452 is a wasteful number, since it uses less digits than its factorization.

445009452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37084128 (or 37084126 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 445009452 is about 21095.2471424252. The cubic root of 445009452 is about 763.4660775269.

Adding to 445009452 its reverse (254900544), we get a palindrome (699909996).

The spelling of 445009452 in words is "four hundred forty-five million, nine thousand, four hundred fifty-two".