195663450 has 48 divisors (see below), whose sum is σ = 492513120. Its totient is φ = 51395520.

The previous prime is 195663449. The next prime is 195663469. The reversal of 195663450 is 54366591.

It is a junction number, because it is equal to n+sod(n) for n = 195663399 and 195663408.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 316 + ... + 19784.

It is an arithmetic number, because the mean of its divisors is an integer number (10260690).

Almost surely, 2^195663450 is an apocalyptic number.

195663450 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 195663450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246256560).

195663450 is an abundant number, since it is smaller than the sum of its proper divisors (296849670).

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

195663450 is a wasteful number, since it uses less digits than its factorization.

195663450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19551 (or 19546 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 195663450 is about 13987.9751930006. The cubic root of 195663450 is about 580.5459089264.

The spelling of 195663450 in words is "one hundred ninety-five million, six hundred sixty-three thousand, four hundred fifty".