195955242 has 32 divisors (see below), whose sum is σ = 449200512. Its totient is φ = 55824384.

The previous prime is 195955237. The next prime is 195955259. The reversal of 195955242 is 242559591.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 195955194 and 195955203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8218 + ... + 21434.

It is an arithmetic number, because the mean of its divisors is an integer number (14037516).

Almost surely, 2^195955242 is an apocalyptic number.

195955242 is an abundant number, since it is smaller than the sum of its proper divisors (253245270).

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

195955242 is a wasteful number, since it uses less digits than its factorization.

195955242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13582.

The product of its digits is 162000, while the sum is 42.

The square root of 195955242 is about 13998.4014087324. The cubic root of 195955242 is about 580.8343540665.

It can be divided in two parts, 1959552 and 42, that multiplied together give a square (82301184 = 9072²).

The spelling of 195955242 in words is "one hundred ninety-five million, nine hundred fifty-five thousand, two hundred forty-two".