449145975 has 24 divisors (see below), whose sum is σ = 743460352. Its totient is φ = 239263200.

The previous prime is 449145973. The next prime is 449145979. The reversal of 449145975 is 579541944.

It is a happy number.

It is not a de Polignac number, because 449145975 - 2¹ = 449145973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449145971) 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 23 ways as a sum of consecutive naturals, for example, 71304 + ... + 77346.

Almost surely, 2^449145975 is an apocalyptic number.

449145975 is a deficient number, since it is larger than the sum of its proper divisors (294314377).

449145975 is a wasteful number, since it uses less digits than its factorization.

449145975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7047 (or 7042 counting only the distinct ones).

The product of its digits is 907200, while the sum is 48.

The square root of 449145975 is about 21193.0643135909. The cubic root of 449145975 is about 765.8243495337.

The spelling of 449145975 in words is "four hundred forty-nine million, one hundred forty-five thousand, nine hundred seventy-five".