195420856 has 16 divisors (see below), whose sum is σ = 370193040. Its totient is φ = 96702720.

The previous prime is 195420851. The next prime is 195420859. The reversal of 195420856 is 658024591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195420851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125140 + ... + 126691.

It is an arithmetic number, because the mean of its divisors is an integer number (23137065).

Almost surely, 2^195420856 is an apocalyptic number.

It is an amenable number.

195420856 is a deficient number, since it is larger than the sum of its proper divisors (174772184).

195420856 is a wasteful number, since it uses less digits than its factorization.

195420856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251934 (or 251930 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 195420856 is about 13979.3009839548. The cubic root of 195420856 is about 580.3058790859.

The spelling of 195420856 in words is "one hundred ninety-five million, four hundred twenty thousand, eight hundred fifty-six".