449481129 has 8 divisors (see below), whose sum is σ = 599548320. Its totient is φ = 299534016.

The previous prime is 449481127. The next prime is 449481133. The reversal of 449481129 is 921184944.

It is a happy number.

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

It is not a de Polignac number, because 449481129 - 2¹ = 449481127 is a prime.

It is a super-2 number, since 2×449481129² = 404066570654229282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (449481127) 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, 20887 + ... + 36540.

It is an arithmetic number, because the mean of its divisors is an integer number (74943540).

Almost surely, 2^449481129 is an apocalyptic number.

It is an amenable number.

449481129 is a deficient number, since it is larger than the sum of its proper divisors (150067191).

449481129 is a wasteful number, since it uses less digits than its factorization.

449481129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60039.

The product of its digits is 82944, while the sum is 42.

The square root of 449481129 is about 21200.9700013938. The cubic root of 449481129 is about 766.0147889397.

The spelling of 449481129 in words is "four hundred forty-nine million, four hundred eighty-one thousand, one hundred twenty-nine".