448729858 has 16 divisors (see below), whose sum is σ = 731952504. Its totient is φ = 205459200.

The previous prime is 448729843. The next prime is 448729907. The reversal of 448729858 is 858927844.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 444661569 + 4068289 = 21087^2 + 2017^2 .

It is a junction number, because it is equal to n+sod(n) for n = 448729799 and 448729808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177093 + ... + 179608.

Almost surely, 2^448729858 is an apocalyptic number.

448729858 is a deficient number, since it is larger than the sum of its proper divisors (283222646).

448729858 is a wasteful number, since it uses less digits than its factorization.

448729858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356757.

The product of its digits is 5160960, while the sum is 55.

The square root of 448729858 is about 21183.2447467332. The cubic root of 448729858 is about 765.5877738902.

The spelling of 448729858 in words is "four hundred forty-eight million, seven hundred twenty-nine thousand, eight hundred fifty-eight".