441320666 has 8 divisors (see below), whose sum is σ = 684808020. Its totient is φ = 213051328.

The previous prime is 441320639. The next prime is 441320687. The reversal of 441320666 is 666023144.

It can be written as a sum of positive squares in 2 ways, for example, as 438693025 + 2627641 = 20945^2 + 1621^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3804431 + ... + 3804546.

Almost surely, 2^441320666 is an apocalyptic number.

441320666 is a deficient number, since it is larger than the sum of its proper divisors (243487354).

441320666 is a wasteful number, since it uses less digits than its factorization.

441320666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7609008.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 441320666 is about 21007.6335173670. The cubic root of 441320666 is about 761.3507063058.

The spelling of 441320666 in words is "four hundred forty-one million, three hundred twenty thousand, six hundred sixty-six".