445224004 has 24 divisors (see below), whose sum is σ = 791259840. Its totient is φ = 219175776.

The previous prime is 445223993. The next prime is 445224011. The reversal of 445224004 is 400422544.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 445224004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68362 + ... + 74590.

It is an arithmetic number, because the mean of its divisors is an integer number (32969160).

Almost surely, 2^445224004 is an apocalyptic number.

It is an amenable number.

445224004 is a deficient number, since it is larger than the sum of its proper divisors (346035836).

445224004 is a wasteful number, since it uses less digits than its factorization.

445224004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6507 (or 6505 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 445224004 is about 21100.3318457317. The cubic root of 445224004 is about 763.5887542142.

Adding to 445224004 its reverse (400422544), we get a palindrome (845646548).

The spelling of 445224004 in words is "four hundred forty-five million, two hundred twenty-four thousand, four".