195517340 has 48 divisors (see below), whose sum is σ = 435909600. Its totient is φ = 73408512.

The previous prime is 195517331. The next prime is 195517379. The reversal of 195517340 is 43715591.

It is a self number, because there is not a number n which added to its sum of digits gives 195517340.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 209996 + ... + 210924.

It is an arithmetic number, because the mean of its divisors is an integer number (9081450).

Almost surely, 2^195517340 is an apocalyptic number.

195517340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195517340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217954800).

195517340 is an abundant number, since it is smaller than the sum of its proper divisors (240392260).

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

195517340 is a wasteful number, since it uses less digits than its factorization.

195517340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574 (or 1572 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 195517340 is about 13982.7515174947. The cubic root of 195517340 is about 580.4013670523.

The spelling of 195517340 in words is "one hundred ninety-five million, five hundred seventeen thousand, three hundred forty".