449944489 has 8 divisors (see below), whose sum is σ = 459929088. Its totient is φ = 439977120.

The previous prime is 449944487. The next prime is 449944493. The reversal of 449944489 is 984449944.

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

It is a cyclic number.

It is not a de Polignac number, because 449944489 - 2¹ = 449944487 is a prime.

It is a super-2 number, since 2×449944489² = 404900086362942242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449944487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58464 + ... + 65710.

It is an arithmetic number, because the mean of its divisors is an integer number (57491136).

Almost surely, 2^449944489 is an apocalyptic number.

It is an amenable number.

449944489 is a deficient number, since it is larger than the sum of its proper divisors (9984599).

449944489 is a wasteful number, since it uses less digits than its factorization.

449944489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8615.

The product of its digits is 5971968, while the sum is 55.

The square root of 449944489 is about 21211.8949884257. The cubic root of 449944489 is about 766.2779210216.

The spelling of 449944489 in words is "four hundred forty-nine million, nine hundred forty-four thousand, four hundred eighty-nine".