445404441 has 16 divisors (see below), whose sum is σ = 625802240. Its totient is φ = 281005200.

The previous prime is 445404419. The next prime is 445404461. The reversal of 445404441 is 144404544.

It is not a de Polignac number, because 445404441 - 2⁹ = 445403929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 445404399 and 445404408.

It is not an unprimeable number, because it can be changed into a prime (445404461) 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 15 ways as a sum of consecutive naturals, for example, 56916 + ... + 64266.

It is an arithmetic number, because the mean of its divisors is an integer number (39112640).

Almost surely, 2^445404441 is an apocalyptic number.

It is an amenable number.

445404441 is a deficient number, since it is larger than the sum of its proper divisors (180397799).

445404441 is a wasteful number, since it uses less digits than its factorization.

445404441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8436.

The product of its (nonzero) digits is 20480, while the sum is 30.

The square root of 445404441 is about 21104.6071036634. The cubic root of 445404441 is about 763.6918940975.

Adding to 445404441 its reverse (144404544), we get a palindrome (589808985).

The spelling of 445404441 in words is "four hundred forty-five million, four hundred four thousand, four hundred forty-one".