448391738 has 16 divisors (see below), whose sum is σ = 685679904. Its totient is φ = 219861840.

The previous prime is 448391737. The next prime is 448391743. The reversal of 448391738 is 837193844.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 448391692 and 448391701.

It is not an unprimeable number, because it can be changed into a prime (448391731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23048 + ... + 37788.

It is an arithmetic number, because the mean of its divisors is an integer number (42854994).

Almost surely, 2^448391738 is an apocalyptic number.

448391738 is a deficient number, since it is larger than the sum of its proper divisors (237288166).

448391738 is a wasteful number, since it uses less digits than its factorization.

448391738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15037.

The product of its digits is 580608, while the sum is 47.

The square root of 448391738 is about 21175.2624068747. The cubic root of 448391738 is about 765.3954342763.

The spelling of 448391738 in words is "four hundred forty-eight million, three hundred ninety-one thousand, seven hundred thirty-eight".