448198155 has 24 divisors (see below), whose sum is σ = 801939840. Its totient is φ = 231327360.

The previous prime is 448198141. The next prime is 448198181. The reversal of 448198155 is 551891844.

It is a happy number.

448198155 is a `hidden beast` number, since 448 + 198 + 15 + 5 = 666.

It is not a de Polignac number, because 448198155 - 2⁴ = 448198139 is a prime.

It is a super-2 number, since 2×448198155² = 401763172290808050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 448198155.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 159250 + ... + 162039.

It is an arithmetic number, because the mean of its divisors is an integer number (33414160).

Almost surely, 2^448198155 is an apocalyptic number.

448198155 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

448198155 is a deficient number, since it is larger than the sum of its proper divisors (353741685).

448198155 is a wasteful number, since it uses less digits than its factorization.

448198155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321331 (or 321328 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The square root of 448198155 is about 21170.6909429050. The cubic root of 448198155 is about 765.2852710272.

The spelling of 448198155 in words is "four hundred forty-eight million, one hundred ninety-eight thousand, one hundred fifty-five".