445224042 has 12 divisors (see below), whose sum is σ = 964652130. Its totient is φ = 148408008.

The previous prime is 445224029. The next prime is 445224049. The reversal of 445224042 is 240422544.

It can be written as a sum of positive squares in only one way, i.e., 388838961 + 56385081 = 19719^2 + 7509^2 .

It is a junction number, because it is equal to n+sod(n) for n = 445223997 and 445224015.

It is not an unprimeable number, because it can be changed into a prime (445224049) 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 5 ways as a sum of consecutive naturals, for example, 12367317 + ... + 12367352.

Almost surely, 2^445224042 is an apocalyptic number.

445224042 is an abundant number, since it is smaller than the sum of its proper divisors (519428088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445224042 is a wasteful number, since it uses less digits than its factorization.

445224042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24734677 (or 24734674 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 445224042 is about 21100.3327461915. The cubic root of 445224042 is about 763.5887759384.

Adding to 445224042 its reverse (240422544), we get a palindrome (685646586).

The spelling of 445224042 in words is "four hundred forty-five million, two hundred twenty-four thousand, forty-two".