445312443 has 8 divisors (see below), whose sum is σ = 625000000. Its totient is φ = 281249928.

The previous prime is 445312411. The next prime is 445312447. The reversal of 445312443 is 344213544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 445312443 - 2⁵ = 445312411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 445312443.

It is not an unprimeable number, because it can be changed into a prime (445312447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3906193 + ... + 3906306.

It is an arithmetic number, because the mean of its divisors is an integer number (78125000).

Almost surely, 2^445312443 is an apocalyptic number.

445312443 is a deficient number, since it is larger than the sum of its proper divisors (179687557).

445312443 is a wasteful number, since it uses less digits than its factorization.

445312443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7812521.

The product of its digits is 23040, while the sum is 30.

The square root of 445312443 is about 21102.4274196122. The cubic root of 445312443 is about 763.6393104543.

Adding to 445312443 its reverse (344213544), we get a palindrome (789525987).

The spelling of 445312443 in words is "four hundred forty-five million, three hundred twelve thousand, four hundred forty-three".