195285720 has 128 divisors (see below), whose sum is σ = 677859840. Its totient is φ = 44083200.

The previous prime is 195285703. The next prime is 195285751. The reversal of 195285720 is 27582591.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68320 + ... + 71120.

It is an arithmetic number, because the mean of its divisors is an integer number (5295780).

Almost surely, 2^195285720 is an apocalyptic number.

195285720 is a gapful number since it is divisible by the number (10) 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 195285720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338929920).

195285720 is an abundant number, since it is smaller than the sum of its proper divisors (482574120).

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

195285720 is a wasteful number, since it uses less digits than its factorization.

195285720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905 (or 2901 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 195285720 is about 13974.4667161219. The cubic root of 195285720 is about 580.1720852831.

The spelling of 195285720 in words is "one hundred ninety-five million, two hundred eighty-five thousand, seven hundred twenty".