195544044 has 54 divisors (see below), whose sum is σ = 513345924. Its totient is φ = 65172600.

The previous prime is 195544043. The next prime is 195544051. The reversal of 195544044 is 440445591.

It is a tau number, because it is divible by the number of its divisors (54).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (195544043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 22519 + ... + 29969.

It is an arithmetic number, because the mean of its divisors is an integer number (9506406).

Almost surely, 2^195544044 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 195544044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256672962).

195544044 is an abundant number, since it is smaller than the sum of its proper divisors (317801880).

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

195544044 is an frugal number, since it uses more digits than its factorization.

195544044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7479 (or 7456 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 195544044 is about 13983.7063756359. The cubic root of 195544044 is about 580.4277898281.

The spelling of 195544044 in words is "one hundred ninety-five million, five hundred forty-four thousand, forty-four".