445317072 has 60 divisors (see below), whose sum is σ = 1179359040. Its totient is φ = 144792320.

The previous prime is 445317071. The next prime is 445317083. The reversal of 445317072 is 270713544.

It is a super-2 number, since 2×445317072² = 396614589229306368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445317071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77929 + ... + 83447.

It is an arithmetic number, because the mean of its divisors is an integer number (19655984).

Almost surely, 2^445317072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445317072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589679520).

445317072 is an abundant number, since it is smaller than the sum of its proper divisors (734041968).

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

445317072 is a wasteful number, since it uses less digits than its factorization.

445317072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5612 (or 5565 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 445317072 is about 21102.5370986524. The cubic root of 445317072 is about 763.6419564422.

The spelling of 445317072 in words is "four hundred forty-five million, three hundred seventeen thousand, seventy-two".