449454768 has 40 divisors (see below), whose sum is σ = 1326962688. Its totient is φ = 128415552.

The previous prime is 449454763. The next prime is 449454769. The reversal of 449454768 is 867454944.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 449454768.

It is not an unprimeable number, because it can be changed into a prime (449454763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668496 + ... + 669167.

Almost surely, 2^449454768 is an apocalyptic number.

449454768 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

449454768 is an abundant number, since it is smaller than the sum of its proper divisors (877507920).

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

449454768 is a wasteful number, since it uses less digits than its factorization.

449454768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337681 (or 1337675 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 51.

The square root of 449454768 is about 21200.3482990257. The cubic root of 449454768 is about 765.9998136647. Note that the first 3 decimals are identical.

The spelling of 449454768 in words is "four hundred forty-nine million, four hundred fifty-four thousand, seven hundred sixty-eight".