195930774 has 96 divisors (see below), whose sum is σ = 486420480. Its totient is φ = 56500416.

The previous prime is 195930773. The next prime is 195930817. The reversal of 195930774 is 477039591.

It is a Curzon number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195930773) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 564469 + ... + 564815.

It is an arithmetic number, because the mean of its divisors is an integer number (5066880).

Almost surely, 2^195930774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195930774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243210240).

195930774 is an abundant number, since it is smaller than the sum of its proper divisors (290489706).

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

195930774 is a wasteful number, since it uses less digits than its factorization.

195930774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 195930774 is about 13997.5274245132. The cubic root of 195930774 is about 580.8101777182.

It can be divided in two parts, 195930 and 774, that multiplied together give a triangular number (151649820 = T₁₇₄₁₅).

The spelling of 195930774 in words is "one hundred ninety-five million, nine hundred thirty thousand, seven hundred seventy-four".