449821494 has 96 divisors (see below), whose sum is σ = 1046260800. Its totient is φ = 139426560.

The previous prime is 449821481. The next prime is 449821517. The reversal of 449821494 is 494128944.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1964172 + ... + 1964400.

It is an arithmetic number, because the mean of its divisors is an integer number (10898550).

Almost surely, 2^449821494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449821494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523130400).

449821494 is an abundant number, since it is smaller than the sum of its proper divisors (596439306).

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

449821494 is a wasteful number, since it uses less digits than its factorization.

449821494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 387 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 449821494 is about 21208.9955914937. The cubic root of 449821494 is about 766.2080924506.

The spelling of 449821494 in words is "four hundred forty-nine million, eight hundred twenty-one thousand, four hundred ninety-four".