195538944 has 52 divisors (see below), whose sum is σ = 521406296. Its totient is φ = 65175552.

The previous prime is 195538927. The next prime is 195538949. The reversal of 195538944 is 449835591.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 195538893 and 195538902.

It is not an unprimeable number, because it can be changed into a prime (195538949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4332 + ... + 20244.

Almost surely, 2^195538944 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 195538944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260703148).

195538944 is an abundant number, since it is smaller than the sum of its proper divisors (325867352).

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

195538944 is an equidigital number, since it uses as much as digits as its factorization.

195538944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15940 (or 15918 counting only the distinct ones).

The product of its digits is 777600, while the sum is 48.

The square root of 195538944 is about 13983.5240193594. The cubic root of 195538944 is about 580.4227437229.

The spelling of 195538944 in words is "one hundred ninety-five million, five hundred thirty-eight thousand, nine hundred forty-four".