195788250 has 192 divisors, whose sum is σ = 626116608. Its totient is φ = 43200000.

The previous prime is 195788249. The next prime is 195788287. The reversal of 195788250 is 52887591.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 195788196 and 195788205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 488050 + ... + 488450.

It is an arithmetic number, because the mean of its divisors is an integer number (3261024).

Almost surely, 2^195788250 is an apocalyptic number.

195788250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 195788250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313058304).

195788250 is an abundant number, since it is smaller than the sum of its proper divisors (430328358).

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

195788250 is a wasteful number, since it uses less digits than its factorization.

195788250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The square root of 195788250 is about 13992.4354563457. The cubic root of 195788250 is about 580.6693125408.

The spelling of 195788250 in words is "one hundred ninety-five million, seven hundred eighty-eight thousand, two hundred fifty".