449381764 has 12 divisors (see below), whose sum is σ = 846911884. Its totient is φ = 207406944.

The previous prime is 449381731. The next prime is 449381813. The reversal of 449381764 is 467183944.

It can be written as a sum of positive squares in 2 ways, for example, as 74649600 + 374732164 = 8640^2 + 19358^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4320927 + ... + 4321030.

Almost surely, 2^449381764 is an apocalyptic number.

It is an amenable number.

449381764 is a deficient number, since it is larger than the sum of its proper divisors (397530120).

449381764 is a wasteful number, since it uses less digits than its factorization.

449381764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8641974 (or 8641972 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 449381764 is about 21198.6264649387. The cubic root of 449381764 is about 765.9583381686.

The spelling of 449381764 in words is "four hundred forty-nine million, three hundred eighty-one thousand, seven hundred sixty-four".