449457768 has 64 divisors (see below), whose sum is σ = 1314216000. Its totient is φ = 141932736.

The previous prime is 449457763. The next prime is 449457769. The reversal of 449457768 is 867754944.

449457768 is a `hidden beast` number, since 4 + 4 + 9 + 4 + 577 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (449457763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50655 + ... + 58862.

It is an arithmetic number, because the mean of its divisors is an integer number (20534625).

Almost surely, 2^449457768 is an apocalyptic number.

It is an amenable number.

449457768 is an abundant number, since it is smaller than the sum of its proper divisors (864758232).

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

449457768 is a wasteful number, since it uses less digits than its factorization.

449457768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109551 (or 109541 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The square root of 449457768 is about 21200.4190524621. The cubic root of 449457768 is about 766.0015179477.

The spelling of 449457768 in words is "four hundred forty-nine million, four hundred fifty-seven thousand, seven hundred sixty-eight".