445047499 has 4 divisors (see below), whose sum is σ = 479281936. Its totient is φ = 410813064.

The previous prime is 445047481. The next prime is 445047503. The reversal of 445047499 is 994740544.

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 445047499 - 2⁵ = 445047467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445047409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17117199 + ... + 17117224.

It is an arithmetic number, because the mean of its divisors is an integer number (119820484).

Almost surely, 2^445047499 is an apocalyptic number.

445047499 is a deficient number, since it is larger than the sum of its proper divisors (34234437).

445047499 is a wasteful number, since it uses less digits than its factorization.

445047499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34234436.

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 445047499 is about 21096.1489139606. The cubic root of 445047499 is about 763.4878349420.

It can be divided in two parts, 44504 and 7499, that added together give a triangular number (52003 = T₃₂₂).

The spelling of 445047499 in words is "four hundred forty-five million, forty-seven thousand, four hundred ninety-nine".