449289561 has 32 divisors (see below), whose sum is σ = 725939200. Its totient is φ = 241444800.

The previous prime is 449289559. The next prime is 449289563. The reversal of 449289561 is 165982944.

It is an interprime number because it is at equal distance from previous prime (449289559) and next prime (449289563).

It is not a de Polignac number, because 449289561 - 2¹ = 449289559 is a prime.

It is a super-2 number, since 2×449289561² = 403722219247145442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 449289561.

It is not an unprimeable number, because it can be changed into a prime (449289563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51411 + ... + 59511.

It is an arithmetic number, because the mean of its divisors is an integer number (22685600).

Almost surely, 2^449289561 is an apocalyptic number.

It is an amenable number.

449289561 is a deficient number, since it is larger than the sum of its proper divisors (276649639).

449289561 is a wasteful number, since it uses less digits than its factorization.

449289561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8269.

The product of its digits is 622080, while the sum is 48.

The square root of 449289561 is about 21196.4516134187. The cubic root of 449289561 is about 765.9059487951.

The spelling of 449289561 in words is "four hundred forty-nine million, two hundred eighty-nine thousand, five hundred sixty-one".