195681382 has 24 divisors (see below), whose sum is σ = 326448576. Its totient is φ = 87867936.

The previous prime is 195681379. The next prime is 195681383. The reversal of 195681382 is 283186591.

It is a super-2 number, since 2×195681382² = 76582406522859848, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195681383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4683 + ... + 20329.

It is an arithmetic number, because the mean of its divisors is an integer number (13602024).

Almost surely, 2^195681382 is an apocalyptic number.

195681382 is a deficient number, since it is larger than the sum of its proper divisors (130767194).

195681382 is a wasteful number, since it uses less digits than its factorization.

195681382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15712 (or 15699 counting only the distinct ones).

The product of its digits is 103680, while the sum is 43.

The square root of 195681382 is about 13988.6161574332. The cubic root of 195681382 is about 580.5636435130.

It can be divided in two parts, 1956 and 81382, that added together give a palindrome (83338).

The spelling of 195681382 in words is "one hundred ninety-five million, six hundred eighty-one thousand, three hundred eighty-two".