195963438 has 32 divisors (see below), whose sum is σ = 431568000. Its totient is φ = 58825760.

The previous prime is 195963401. The next prime is 195963491. The reversal of 195963438 is 834369591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6813 + ... + 20936.

It is an arithmetic number, because the mean of its divisors is an integer number (13486500).

Almost surely, 2^195963438 is an apocalyptic number.

195963438 is an abundant number, since it is smaller than the sum of its proper divisors (235604562).

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

195963438 is a wasteful number, since it uses less digits than its factorization.

195963438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27872.

The product of its digits is 699840, while the sum is 48.

The square root of 195963438 is about 13998.6941533845. The cubic root of 195963438 is about 580.8424519225.

The spelling of 195963438 in words is "one hundred ninety-five million, nine hundred sixty-three thousand, four hundred thirty-eight".