449042143 has 8 divisors (see below), whose sum is σ = 515646720. Its totient is φ = 386734680.

The previous prime is 449042123. The next prime is 449042149. The reversal of 449042143 is 341240944.

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 449042143 - 2⁹ = 449041631 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 (449042149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1074055 + ... + 1074472.

It is an arithmetic number, because the mean of its divisors is an integer number (64455840).

Almost surely, 2^449042143 is an apocalyptic number.

449042143 is a deficient number, since it is larger than the sum of its proper divisors (66604577).

449042143 is a wasteful number, since it uses less digits than its factorization.

449042143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148557.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 449042143 is about 21190.6145026519. The cubic root of 449042143 is about 765.7653314516.

The spelling of 449042143 in words is "four hundred forty-nine million, forty-two thousand, one hundred forty-three".