449819988 has 24 divisors (see below), whose sum is σ = 1053978240. Its totient is φ = 149311680.

The previous prime is 449819987. The next prime is 449819999. The reversal of 449819988 is 889918944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449819987) 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 7 ways as a sum of consecutive naturals, for example, 75553 + ... + 81288.

It is an arithmetic number, because the mean of its divisors is an integer number (43915760).

Almost surely, 2^449819988 is an apocalyptic number.

It is an amenable number.

449819988 is an abundant number, since it is smaller than the sum of its proper divisors (604158252).

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

449819988 is a wasteful number, since it uses less digits than its factorization.

449819988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157087 (or 157085 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 60.

The square root of 449819988 is about 21208.9600876611. The cubic root of 449819988 is about 766.2072373628.

The spelling of 449819988 in words is "four hundred forty-nine million, eight hundred nineteen thousand, nine hundred eighty-eight".