195698438 has 16 divisors (see below), whose sum is σ = 327030480. Its totient is φ = 87207456.

The previous prime is 195698429. The next prime is 195698483. The reversal of 195698438 is 834896591.

195698438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 195698438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129020 + ... + 130527.

It is an arithmetic number, because the mean of its divisors is an integer number (20439405).

Almost surely, 2^195698438 is an apocalyptic number.

195698438 is a deficient number, since it is larger than the sum of its proper divisors (131332042).

195698438 is a wasteful number, since it uses less digits than its factorization.

195698438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259591.

The product of its digits is 1866240, while the sum is 53.

The square root of 195698438 is about 13989.2257827229. The cubic root of 195698438 is about 580.5805107383.

The spelling of 195698438 in words is "one hundred ninety-five million, six hundred ninety-eight thousand, four hundred thirty-eight".