195944004 has 27 divisors (see below), whose sum is σ = 495515293. Its totient is φ = 65286672.

The previous prime is 195943997. The next prime is 195944011. The reversal of 195944004 is 400449591.

It is a happy number.

The square root of 195944004 is 13998.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (195943997) and next prime (195944011).

It can be written as a sum of positive squares in only one way, i.e., 67076100 + 128867904 = 8190^2 + 11352^2 .

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 195944004.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 82822 + ... + 85154.

Almost surely, 2^195944004 is an apocalyptic number.

195944004 is the 13998-th square number.

It is an amenable number.

195944004 is an abundant number, since it is smaller than the sum of its proper divisors (299571289).

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

195944004 is an equidigital number, since it uses as much as digits as its factorization.

195944004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4676 (or 2338 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The cubic root of 195944004 is about 580.8232502702.

Multiplying 195944004 by its sum of digits (36), we get a square (7053984144 = 83988²).

195944004 divided by its sum of digits (36) gives a square (5442889 = 2333²).

The spelling of 195944004 in words is "one hundred ninety-five million, nine hundred forty-four thousand, four".