441649297489 has 9 divisors (see below), whose sum is σ = 450175431643. Its totient is φ = 433281734392.

The previous prime is 441649297483. The next prime is 441649297493. The reversal of 441649297489 is 984792946144.

The square root of 441649297489 is 664567.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 318383705025 + 123265592464 = 564255^2 + 351092^2 .

It is not a de Polignac number, because 441649297489 - 2⁵ = 441649297457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (441649297483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 35215782 + ... + 35228320.

Almost surely, 2^441649297489 is an apocalyptic number.

441649297489 is the 664567-th square number.

441649297489 is the 332284-th centered octagonal number.

It is an amenable number.

441649297489 is a deficient number, since it is larger than the sum of its proper divisors (8526134154).

441649297489 is an frugal number, since it uses more digits than its factorization.

441649297489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25184 (or 12592 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 67.

The spelling of 441649297489 in words is "four hundred forty-one billion, six hundred forty-nine million, two hundred ninety-seven thousand, four hundred eighty-nine".