198642416 has 120 divisors (see below), whose sum is σ = 493227360. Its totient is φ = 75907584.

The previous prime is 198642407. The next prime is 198642443. The reversal of 198642416 is 614246891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10454855 + ... + 10454873.

It is an arithmetic number, because the mean of its divisors is an integer number (4110228).

Almost surely, 2^198642416 is an apocalyptic number.

198642416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198642416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246613680).

198642416 is an abundant number, since it is smaller than the sum of its proper divisors (294584944).

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

198642416 is an equidigital number, since it uses as much as digits as its factorization.

198642416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 45 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 198642416 is about 14094.0560521093. The cubic root of 198642416 is about 583.4773424769.

The spelling of 198642416 in words is "one hundred ninety-eight million, six hundred forty-two thousand, four hundred sixteen".