195426816 has 80 divisors (see below), whose sum is σ = 560734944. Its totient is φ = 60125184.

The previous prime is 195426811. The next prime is 195426817. The reversal of 195426816 is 618624591.

It is not an unprimeable number, because it can be changed into a prime (195426811) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15075 + ... + 24861.

Almost surely, 2^195426816 is an apocalyptic number.

195426816 is a gapful number since it is divisible by the number (16) 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 195426816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280367472).

195426816 is an abundant number, since it is smaller than the sum of its proper divisors (365308128).

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

195426816 is an equidigital number, since it uses as much as digits as its factorization.

195426816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9821 (or 9805 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 195426816 is about 13979.5141546479. The cubic root of 195426816 is about 580.3117784697.

The spelling of 195426816 in words is "one hundred ninety-five million, four hundred twenty-six thousand, eight hundred sixteen".