195208320 has 128 divisors (see below), whose sum is σ = 626149440. Its totient is φ = 51728384.

The previous prime is 195208231. The next prime is 195208439. The reversal of 195208320 is 23802591.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 562387 + ... + 562733.

Almost surely, 2^195208320 is an apocalyptic number.

195208320 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 195208320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313074720).

195208320 is an abundant number, since it is smaller than the sum of its proper divisors (430941120).

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

195208320 is a wasteful number, since it uses less digits than its factorization.

195208320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 195208320 is about 13971.6971052195. The cubic root of 195208320 is about 580.0954262331.

The spelling of 195208320 in words is "one hundred ninety-five million, two hundred eight thousand, three hundred twenty".