445009028 has 12 divisors (see below), whose sum is σ = 786327360. Its totient is φ = 220344072.

The previous prime is 445009009. The next prime is 445009049. The reversal of 445009028 is 820900544.

It is a junction number, because it is equal to n+sod(n) for n = 445008985 and 445009003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539648 + ... + 540471.

It is an arithmetic number, because the mean of its divisors is an integer number (65527280).

Almost surely, 2^445009028 is an apocalyptic number.

It is an amenable number.

445009028 is a deficient number, since it is larger than the sum of its proper divisors (341318332).

445009028 is a wasteful number, since it uses less digits than its factorization.

445009028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080226 (or 1080224 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 445009028 is about 21095.2370927658. The cubic root of 445009028 is about 763.4658350529.

The spelling of 445009028 in words is "four hundred forty-five million, nine thousand, twenty-eight".