195898230 has 128 divisors (see below), whose sum is σ = 578534400. Its totient is φ = 46771200.

The previous prime is 195898217. The next prime is 195898243. The reversal of 195898230 is 32898591.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (195898217) and next prime (195898243).

It is a super-2 number, since 2×195898230² = 76752233034265800, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 210406 + ... + 211334.

It is an arithmetic number, because the mean of its divisors is an integer number (4519800).

Almost surely, 2^195898230 is an apocalyptic number.

195898230 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 195898230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289267200).

195898230 is an abundant number, since it is smaller than the sum of its proper divisors (382636170).

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

195898230 is a wasteful number, since it uses less digits than its factorization.

195898230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027 (or 1021 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 195898230 is about 13996.3648852122. The cubic root of 195898230 is about 580.7780185144.

The spelling of 195898230 in words is "one hundred ninety-five million, eight hundred ninety-eight thousand, two hundred thirty".