195512940 has 216 divisors, whose sum is σ = 716303952. Its totient is φ = 44634240.

The previous prime is 195512927. The next prime is 195512953. The reversal of 195512940 is 49215591.

195512940 is a `hidden beast` number, since 19 + 551 + 2 + 94 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (195512927) and next prime (195512953).

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

It is a junction number, because it is equal to n+sod(n) for n = 195512895 and 195512904.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 237730 + ... + 238550.

It is an arithmetic number, because the mean of its divisors is an integer number (3316222).

Almost surely, 2^195512940 is an apocalyptic number.

195512940 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 195512940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358151976).

195512940 is an abundant number, since it is smaller than the sum of its proper divisors (520791012).

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

195512940 is a wasteful number, since it uses less digits than its factorization.

195512940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 195512940 is about 13982.5941799081. The cubic root of 195512940 is about 580.3970131585.

The spelling of 195512940 in words is "one hundred ninety-five million, five hundred twelve thousand, nine hundred forty".