398648081448 has 48 divisors (see below), whose sum is σ = 1143182001780. Its totient is φ = 125066064384.

The previous prime is 398648081401. The next prime is 398648081467. The reversal of 398648081448 is 844180846893.

398648081448 is a `hidden beast` number, since 3 + 9 + 8 + 6 + 480 + 8 + 144 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 373391879364 + 25256202084 = 611058^2 + 158922^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162845215 + ... + 162847662.

Almost surely, 2^398648081448 is an apocalyptic number.

It is an amenable number.

398648081448 is an abundant number, since it is smaller than the sum of its proper divisors (744533920332).

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

398648081448 is a wasteful number, since it uses less digits than its factorization.

398648081448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325692906 (or 325692899 counting only the distinct ones).

The product of its (nonzero) digits is 42467328, while the sum is 63.

The spelling of 398648081448 in words is "three hundred ninety-eight billion, six hundred forty-eight million, eighty-one thousand, four hundred forty-eight".