127800198 has 48 divisors (see below), whose sum is σ = 285719616. Its totient is φ = 41258880.

The previous prime is 127800193. The next prime is 127800199. The reversal of 127800198 is 891008721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127800193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115315 + ... + 116417.

It is an arithmetic number, because the mean of its divisors is an integer number (5952492).

Almost surely, 2^127800198 is an apocalyptic number.

127800198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

127800198 is an abundant number, since it is smaller than the sum of its proper divisors (157919418).

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

127800198 is a wasteful number, since it uses less digits than its factorization.

127800198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 127800198 is about 11304.8749661374. The cubic root of 127800198 is about 503.7060597065.

The spelling of 127800198 in words is "one hundred twenty-seven million, eight hundred thousand, one hundred ninety-eight".