195373620 has 120 divisors (see below), whose sum is σ = 660111144. Its totient is φ = 48086784.

The previous prime is 195373597. The next prime is 195373627. The reversal of 195373620 is 26373591.

It can be written as a sum of positive squares in 4 ways, for example, as 16990884 + 178382736 = 4122^2 + 13356^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195373627) 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 39 ways as a sum of consecutive naturals, for example, 16422 + ... + 25698.

Almost surely, 2^195373620 is an apocalyptic number.

195373620 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 195373620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330055572).

195373620 is an abundant number, since it is smaller than the sum of its proper divisors (464737524).

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

195373620 is a wasteful number, since it uses less digits than its factorization.

195373620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9311 (or 9300 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 195373620 is about 13977.6113839239. The cubic root of 195373620 is about 580.2591192570.

The spelling of 195373620 in words is "one hundred ninety-five million, three hundred seventy-three thousand, six hundred twenty".