441649 has 8 divisors (see below), whose sum is σ = 485352. Its totient is φ = 399360.

The previous prime is 441647. The next prime is 441667. The reversal of 441649 is 946144.

It can be written as a sum of positive squares in 4 ways, for example, as 119025 + 322624 = 345^2 + 568^2 .

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

It is not a de Polignac number, because 441649 - 2¹ = 441647 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (441647) by changing a digit.

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, 369 + ... + 1009.

It is an arithmetic number, because the mean of its divisors is an integer number (60669).

2⁴⁴¹⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

441649 is a deficient number, since it is larger than the sum of its proper divisors (43703).

441649 is a wasteful number, since it uses less digits than its factorization.

441649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707.

The product of its digits is 3456, while the sum is 28.

The square root of 441649 is about 664.5667761783. The cubic root of 441649 is about 76.1539469545.

It can be divided in two parts, 4416 and 49, that added together give a triangular number (4465 = T₉₄).

The spelling of 441649 in words is "four hundred forty-one thousand, six hundred forty-nine".