449543237220 has 1296 divisors, whose sum is σ = 1908296470080. Its totient is φ = 84463948800.

The previous prime is 449543237189. The next prime is 449543237237. The reversal of 449543237220 is 22732345944.

449543237220 is a `hidden beast` number, since 44 + 95 + 432 + 3 + 72 + 20 = 666.

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 Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 975147790 + ... + 975148250.

It is an arithmetic number, because the mean of its divisors is an integer number (1472450980).

Almost surely, 2^449543237220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449543237220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (954148235040).

449543237220 is an abundant number, since it is smaller than the sum of its proper divisors (1458753232860).

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

449543237220 is a wasteful number, since it uses less digits than its factorization.

449543237220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

The spelling of 449543237220 in words is "four hundred forty-nine billion, five hundred forty-three million, two hundred thirty-seven thousand, two hundred twenty".