195240590 has 8 divisors (see below), whose sum is σ = 351433080. Its totient is φ = 78096232.

The previous prime is 195240589. The next prime is 195240623. The reversal of 195240590 is 95042591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 195240590.

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 3 ways as a sum of consecutive naturals, for example, 9762020 + ... + 9762039.

It is an arithmetic number, because the mean of its divisors is an integer number (43929135).

Almost surely, 2^195240590 is an apocalyptic number.

195240590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195240590 is a deficient number, since it is larger than the sum of its proper divisors (156192490).

195240590 is a wasteful number, since it uses less digits than its factorization.

195240590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19524066.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 195240590 is about 13972.8518921514. The cubic root of 195240590 is about 580.1273897750.

The spelling of 195240590 in words is "one hundred ninety-five million, two hundred forty thousand, five hundred ninety".