196998912 has 144 divisors (see below), whose sum is σ = 635765760. Its totient is φ = 59673600.

The previous prime is 196998911. The next prime is 196998913. The reversal of 196998912 is 219899691.

It is an interprime number because it is at equal distance from previous prime (196998911) and next prime (196998913).

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196998911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74737 + ... + 77327.

It is an arithmetic number, because the mean of its divisors is an integer number (4415040).

Almost surely, 2^196998912 is an apocalyptic number.

196998912 is a gapful number since it is divisible by the number (12) 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 196998912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317882880).

196998912 is an abundant number, since it is smaller than the sum of its proper divisors (438766848).

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

196998912 is a wasteful number, since it uses less digits than its factorization.

196998912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2627 (or 2607 counting only the distinct ones).

The product of its digits is 629856, while the sum is 54.

The square root of 196998912 is about 14035.6300891695. The cubic root of 196998912 is about 581.8637155652.

The spelling of 196998912 in words is "one hundred ninety-six million, nine hundred ninety-eight thousand, nine hundred twelve".