449478892 has 6 divisors (see below), whose sum is σ = 786588068. Its totient is φ = 224739444.

The previous prime is 449478881. The next prime is 449478893. The reversal of 449478892 is 298874944.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (449478893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56184858 + ... + 56184865.

Almost surely, 2^449478892 is an apocalyptic number.

It is an amenable number.

449478892 is a deficient number, since it is larger than the sum of its proper divisors (337109176).

449478892 is a wasteful number, since it uses less digits than its factorization.

449478892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112369727 (or 112369725 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 55.

The square root of 449478892 is about 21200.9172443081. The cubic root of 449478892 is about 766.0135181575.

The spelling of 449478892 in words is "four hundred forty-nine million, four hundred seventy-eight thousand, eight hundred ninety-two".