195492240 has 60 divisors (see below), whose sum is σ = 656530524. Its totient is φ = 52131072.

The previous prime is 195492239. The next prime is 195492247. The reversal of 195492240 is 42294591.

It can be written as a sum of positive squares in 2 ways, for example, as 28772496 + 166719744 = 5364^2 + 12912^2 .

It is a tau number, because it is divible by the number of its divisors (60).

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 = 195492195 and 195492204.

It is not an unprimeable number, because it can be changed into a prime (195492247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135039 + ... + 136478.

Almost surely, 2^195492240 is an apocalyptic number.

195492240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195492240 is an abundant number, since it is smaller than the sum of its proper divisors (461038284).

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

195492240 is a wasteful number, since it uses less digits than its factorization.

195492240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271536 (or 271527 counting only the distinct ones).

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

The square root of 195492240 is about 13981.8539543224. The cubic root of 195492240 is about 580.3765291909.

The spelling of 195492240 in words is "one hundred ninety-five million, four hundred ninety-two thousand, two hundred forty".