445404243 has 32 divisors (see below), whose sum is σ = 626149440. Its totient is φ = 281254400.

The previous prime is 445404241. The next prime is 445404259. The reversal of 445404243 is 342404544.

It is a cyclic number.

It is not a de Polignac number, because 445404243 - 2¹ = 445404241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 445404243.

It is not an unprimeable number, because it can be changed into a prime (445404241) 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 31 ways as a sum of consecutive naturals, for example, 1520005 + ... + 1520297.

It is an arithmetic number, because the mean of its divisors is an integer number (19567170).

Almost surely, 2^445404243 is an apocalyptic number.

445404243 is a deficient number, since it is larger than the sum of its proper divisors (180745197).

445404243 is a wasteful number, since it uses less digits than its factorization.

445404243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599.

The product of its (nonzero) digits is 30720, while the sum is 30.

The square root of 445404243 is about 21104.6024127440. The cubic root of 445404243 is about 763.6917809337.

Adding to 445404243 its reverse (342404544), we get a palindrome (787808787).

The spelling of 445404243 in words is "four hundred forty-five million, four hundred four thousand, two hundred forty-three".