441405505 has 4 divisors (see below), whose sum is σ = 529686612. Its totient is φ = 353124400.

The previous prime is 441405499. The next prime is 441405533. The reversal of 441405505 is 505504144.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52881984 + 388523521 = 7272^2 + 19711^2 .

It is not a de Polignac number, because 441405505 - 2⁹ = 441404993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44140546 + ... + 44140555.

It is an arithmetic number, because the mean of its divisors is an integer number (132421653).

Almost surely, 2^441405505 is an apocalyptic number.

It is an amenable number.

441405505 is a deficient number, since it is larger than the sum of its proper divisors (88281107).

441405505 is an equidigital number, since it uses as much as digits as its factorization.

441405505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88281106.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 441405505 is about 21009.6526625263. The cubic root of 441405505 is about 761.3994902543.

Adding to 441405505 its reverse (505504144), we get a palindrome (946909649).

The spelling of 441405505 in words is "four hundred forty-one million, four hundred five thousand, five hundred five".