195240816 has 60 divisors (see below), whose sum is σ = 547364272. Its totient is φ = 64965888.

The previous prime is 195240797. The next prime is 195240833. The reversal of 195240816 is 618042591.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134205 + ... + 135651.

Almost surely, 2^195240816 is an apocalyptic number.

195240816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

195240816 is an abundant number, since it is smaller than the sum of its proper divisors (352123456).

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

195240816 is a wasteful number, since it uses less digits than its factorization.

195240816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398 (or 2389 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 195240816 is about 13972.8599792598. The cubic root of 195240816 is about 580.1276136163.

The spelling of 195240816 in words is "one hundred ninety-five million, two hundred forty thousand, eight hundred sixteen".