195788460 has 192 divisors, whose sum is σ = 660667392. Its totient is φ = 42384384.

The previous prime is 195788459. The next prime is 195788471. The reversal of 195788460 is 64887591.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

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, 668074 + ... + 668366.

It is an arithmetic number, because the mean of its divisors is an integer number (3440976).

Almost surely, 2^195788460 is an apocalyptic number.

195788460 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 195788460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330333696).

195788460 is an abundant number, since it is smaller than the sum of its proper divisors (464878932).

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

195788460 is a wasteful number, since it uses less digits than its factorization.

195788460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 195788460 is about 13992.4429603983. The cubic root of 195788460 is about 580.6695201470.

The spelling of 195788460 in words is "one hundred ninety-five million, seven hundred eighty-eight thousand, four hundred sixty".