195711940 has 12 divisors (see below), whose sum is σ = 410995116. Its totient is φ = 78284768.

The previous prime is 195711937. The next prime is 195711949. The reversal of 195711940 is 49117591.

195711940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 137921536 + 57790404 = 11744^2 + 7602^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 195711940.

It is not an unprimeable number, because it can be changed into a prime (195711949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4892779 + ... + 4892818.

It is an arithmetic number, because the mean of its divisors is an integer number (34249593).

Almost surely, 2^195711940 is an apocalyptic number.

195711940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195711940 is an abundant number, since it is smaller than the sum of its proper divisors (215283176).

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

195711940 is a wasteful number, since it uses less digits than its factorization.

195711940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9785606 (or 9785604 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 37.

The square root of 195711940 is about 13989.7083600767. The cubic root of 195711940 is about 580.5938626039.

The spelling of 195711940 in words is "one hundred ninety-five million, seven hundred eleven thousand, nine hundred forty".