195043680 has 384 divisors, whose sum is σ = 772208640. Its totient is φ = 45619200.

The previous prime is 195043649. The next prime is 195043691. The reversal of 195043680 is 86340591.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1291605 + ... + 1291755.

It is an arithmetic number, because the mean of its divisors is an integer number (2010960).

Almost surely, 2^195043680 is an apocalyptic number.

195043680 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 195043680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386104320).

195043680 is an abundant number, since it is smaller than the sum of its proper divisors (577164960).

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

195043680 is a wasteful number, since it uses less digits than its factorization.

195043680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 195043680 is about 13965.8039510799. The cubic root of 195043680 is about 579.9322949110.

The spelling of 195043680 in words is "one hundred ninety-five million, forty-three thousand, six hundred eighty".