16198398 has 24 divisors (see below), whose sum is σ = 35441328. Its totient is φ = 5346432.

The previous prime is 16198387. The next prime is 16198423. The reversal of 16198398 is 89389161.

It is a Curzon number.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 2515 + ... + 6222.

It is an arithmetic number, because the mean of its divisors is an integer number (1476722).

Almost surely, 2^16198398 is an apocalyptic number.

16198398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16198398 is an abundant number, since it is smaller than the sum of its proper divisors (19242930).

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

16198398 is a wasteful number, since it uses less digits than its factorization.

16198398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8848 (or 8845 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 16198398 is about 4024.7233445294. The cubic root of 16198398 is about 253.0214587037.

The spelling of 16198398 in words is "sixteen million, one hundred ninety-eight thousand, three hundred ninety-eight".