444521242 has 16 divisors (see below), whose sum is σ = 728425152. Its totient is φ = 201769920.

The previous prime is 444521173. The next prime is 444521243. The reversal of 444521242 is 242125444.

It is a self number, because there is not a number n which added to its sum of digits gives 444521242.

It is not an unprimeable number, because it can be changed into a prime (444521243) 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, 2098 + ... + 29890.

It is an arithmetic number, because the mean of its divisors is an integer number (45526572).

Almost surely, 2^444521242 is an apocalyptic number.

444521242 is a deficient number, since it is larger than the sum of its proper divisors (283903910).

444521242 is a wasteful number, since it uses less digits than its factorization.

444521242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28533.

The product of its digits is 10240, while the sum is 28.

The square root of 444521242 is about 21083.6724030706. The cubic root of 444521242 is about 763.1867814652.

Adding to 444521242 its reverse (242125444), we get a palindrome (686646686).

The spelling of 444521242 in words is "four hundred forty-four million, five hundred twenty-one thousand, two hundred forty-two".