196642944 has 128 divisors (see below), whose sum is σ = 614692800. Its totient is φ = 61673472.

The previous prime is 196642937. The next prime is 196642967. The reversal of 196642944 is 449246691.

It is a tau number, because it is divible by the number of its divisors (128).

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

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 196642944.

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, 57079 + ... + 60425.

Almost surely, 2^196642944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196642944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307346400).

196642944 is an abundant number, since it is smaller than the sum of its proper divisors (418049856).

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

196642944 is a wasteful number, since it uses less digits than its factorization.

196642944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387 (or 3369 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 196642944 is about 14022.9434855882. The cubic root of 196642944 is about 581.5130372434.

The spelling of 196642944 in words is "one hundred ninety-six million, six hundred forty-two thousand, nine hundred forty-four".