198385455 has 16 divisors (see below), whose sum is σ = 317971584. Its totient is φ = 105620640.

The previous prime is 198385391. The next prime is 198385469. The reversal of 198385455 is 554583891.

It is a happy number.

It is not a de Polignac number, because 198385455 - 2⁶ = 198385391 is a prime.

It is a super-3 number, since 3×198385455³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2461 + ... + 20070.

It is an arithmetic number, because the mean of its divisors is an integer number (19873224).

Almost surely, 2^198385455 is an apocalyptic number.

198385455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

198385455 is a deficient number, since it is larger than the sum of its proper divisors (119586129).

198385455 is a wasteful number, since it uses less digits than its factorization.

198385455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23126.

The product of its digits is 864000, while the sum is 48.

The square root of 198385455 is about 14084.9371670590. The cubic root of 198385455 is about 583.2256412534.

The spelling of 198385455 in words is "one hundred ninety-eight million, three hundred eighty-five thousand, four hundred fifty-five".