195019944 has 128 divisors (see below), whose sum is σ = 596090880. Its totient is φ = 51955200.

The previous prime is 195019939. The next prime is 195019949. The reversal of 195019944 is 449910591.

It is a happy number.

195019944 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (195019939) and next prime (195019949).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 195019896 and 195019905.

It is not an unprimeable number, because it can be changed into a prime (195019949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157809 + ... + 159039.

It is an arithmetic number, because the mean of its divisors is an integer number (4656960).

Almost surely, 2^195019944 is an apocalyptic number.

195019944 is a gapful number since it is divisible by the number (14) 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 195019944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298045440).

195019944 is an abundant number, since it is smaller than the sum of its proper divisors (401070936).

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

195019944 is a wasteful number, since it uses less digits than its factorization.

195019944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311 (or 1307 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 195019944 is about 13964.9541352630. The cubic root of 195019944 is about 579.9087688451.

The spelling of 195019944 in words is "one hundred ninety-five million, nineteen thousand, nine hundred forty-four".