195587220 has 96 divisors (see below), whose sum is σ = 574358400. Its totient is φ = 49701120.

The previous prime is 195587219. The next prime is 195587233. The reversal of 195587220 is 22785591.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 4548519 + ... + 4548561.

It is an arithmetic number, because the mean of its divisors is an integer number (5982900).

Almost surely, 2^195587220 is an apocalyptic number.

195587220 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 195587220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287179200).

195587220 is an abundant number, since it is smaller than the sum of its proper divisors (378771180).

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

195587220 is an equidigital number, since it uses as much as digits as its factorization.

195587220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 94 counting only the distinct ones).

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

The square root of 195587220 is about 13985.2500871454. The cubic root of 195587220 is about 580.4705060461.

The spelling of 195587220 in words is "one hundred ninety-five million, five hundred eighty-seven thousand, two hundred twenty".