445818003 has 4 divisors (see below), whose sum is σ = 594424008. Its totient is φ = 297212000.

The previous prime is 445818001. The next prime is 445818007. The reversal of 445818003 is 300818544.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 445818003 - 2¹ = 445818001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (445818001) by changing a digit.

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, 74302998 + ... + 74303003.

It is an arithmetic number, because the mean of its divisors is an integer number (148606002).

Almost surely, 2^445818003 is an apocalyptic number.

445818003 is a deficient number, since it is larger than the sum of its proper divisors (148606005).

445818003 is a wasteful number, since it uses less digits than its factorization.

445818003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148606004.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 445818003 is about 21114.4027384153. The cubic root of 445818003 is about 763.9281858935.

The spelling of 445818003 in words is "four hundred forty-five million, eight hundred eighteen thousand, three".