195363440 has 40 divisors (see below), whose sum is σ = 458260848. Its totient is φ = 77450240.

The previous prime is 195363437. The next prime is 195363451. The reversal of 195363440 is 44363591.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 195363440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1766 + ... + 19845.

Almost surely, 2^195363440 is an apocalyptic number.

195363440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195363440 is an abundant number, since it is smaller than the sum of its proper divisors (262897408).

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

195363440 is a wasteful number, since it uses less digits than its factorization.

195363440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21737 (or 21731 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 195363440 is about 13977.2472254017. The cubic root of 195363440 is about 580.2490408912.

The spelling of 195363440 in words is "one hundred ninety-five million, three hundred sixty-three thousand, four hundred forty".