194988416 has 64 divisors (see below), whose sum is σ = 446148000. Its totient is φ = 83152896.

The previous prime is 194988407. The next prime is 194988427. The reversal of 194988416 is 614889491.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240620 + ... + 241428.

Almost surely, 2^194988416 is an apocalyptic number.

194988416 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 194988416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223074000).

194988416 is an abundant number, since it is smaller than the sum of its proper divisors (251159584).

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

194988416 is an equidigital number, since it uses as much as digits as its factorization.

194988416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099 (or 1087 counting only the distinct ones).

The product of its digits is 497664, while the sum is 50.

The square root of 194988416 is about 13963.8252638738. The cubic root of 194988416 is about 579.8775167441.

The spelling of 194988416 in words is "one hundred ninety-four million, nine hundred eighty-eight thousand, four hundred sixteen".