449115778 has 8 divisors (see below), whose sum is σ = 675371772. Its totient is φ = 223991856.

The previous prime is 449115757. The next prime is 449115781. The reversal of 449115778 is 877511944.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 432931249 + 16184529 = 20807^2 + 4023^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282025 + ... + 283612.

Almost surely, 2^449115778 is an apocalyptic number.

449115778 is a deficient number, since it is larger than the sum of its proper divisors (226255994).

449115778 is a wasteful number, since it uses less digits than its factorization.

449115778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566036.

The product of its digits is 282240, while the sum is 46.

The square root of 449115778 is about 21192.3518751459. The cubic root of 449115778 is about 765.8071865047.

The spelling of 449115778 in words is "four hundred forty-nine million, one hundred fifteen thousand, seven hundred seventy-eight".