195832640 has 28 divisors (see below), whose sum is σ = 466327236. Its totient is φ = 78332928.

The previous prime is 195832633. The next prime is 195832667. The reversal of 195832640 is 46238591.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 135117376 + 60715264 = 11624^2 + 7792^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 195832594 and 195832603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305669 + ... + 306308.

Almost surely, 2^195832640 is an apocalyptic number.

195832640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195832640 is an abundant number, since it is smaller than the sum of its proper divisors (270494596).

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

195832640 is an equidigital number, since it uses as much as digits as its factorization.

195832640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611994 (or 611984 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 195832640 is about 13994.0215806608. The cubic root of 195832640 is about 580.7131932181.

The spelling of 195832640 in words is "one hundred ninety-five million, eight hundred thirty-two thousand, six hundred forty".