445520242 has 8 divisors (see below), whose sum is σ = 670458096. Its totient is φ = 222034212.

The previous prime is 445520237. The next prime is 445520249. The reversal of 445520242 is 242025544.

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

It is a self number, because there is not a number n which added to its sum of digits gives 445520242.

It is not an unprimeable number, because it can be changed into a prime (445520249) 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, 362188 + ... + 363415.

It is an arithmetic number, because the mean of its divisors is an integer number (83807262).

Almost surely, 2^445520242 is an apocalyptic number.

445520242 is a deficient number, since it is larger than the sum of its proper divisors (224937854).

445520242 is a wasteful number, since it uses less digits than its factorization.

445520242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725912.

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 445520242 is about 21107.3504258588. The cubic root of 445520242 is about 763.7580726189.

Adding to 445520242 its reverse (242025544), we get a palindrome (687545786).

The spelling of 445520242 in words is "four hundred forty-five million, five hundred twenty thousand, two hundred forty-two".