445334289 has 4 divisors (see below), whose sum is σ = 593779056. Its totient is φ = 296889524.

The previous prime is 445334233. The next prime is 445334291. The reversal of 445334289 is 982433544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 445334289 - 2¹⁹ = 444810001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 445334289.

It is not an unprimeable number, because it can be changed into a prime (445334089) 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, 74222379 + ... + 74222384.

It is an arithmetic number, because the mean of its divisors is an integer number (148444764).

Almost surely, 2^445334289 is an apocalyptic number.

It is an amenable number.

445334289 is a deficient number, since it is larger than the sum of its proper divisors (148444767).

445334289 is a wasteful number, since it uses less digits than its factorization.

445334289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148444766.

The product of its digits is 414720, while the sum is 42.

The square root of 445334289 is about 21102.9450314405. The cubic root of 445334289 is about 763.6517977104.

The spelling of 445334289 in words is "four hundred forty-five million, three hundred thirty-four thousand, two hundred eighty-nine".