449471478 has 8 divisors (see below), whose sum is σ = 898942968. Its totient is φ = 149823824.

The previous prime is 449471461. The next prime is 449471489. The reversal of 449471478 is 874174944.

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

449471478 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 37455951 + ... + 37455962.

It is an arithmetic number, because the mean of its divisors is an integer number (112367871).

Almost surely, 2^449471478 is an apocalyptic number.

449471478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449471478 is a wasteful number, since it uses less digits than its factorization.

449471478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74911918.

The product of its digits is 903168, while the sum is 48.

The square root of 449471478 is about 21200.7423926616. The cubic root of 449471478 is about 766.0093064243.

The spelling of 449471478 in words is "four hundred forty-nine million, four hundred seventy-one thousand, four hundred seventy-eight".