195399694 has 16 divisors (see below), whose sum is σ = 336911328. Its totient is φ = 83257632.

The previous prime is 195399689. The next prime is 195399707. The reversal of 195399694 is 496993591.

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, 37917 + ... + 42760.

It is an arithmetic number, because the mean of its divisors is an integer number (21056958).

Almost surely, 2^195399694 is an apocalyptic number.

195399694 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

195399694 is a deficient number, since it is larger than the sum of its proper divisors (141511634).

195399694 is a wasteful number, since it uses less digits than its factorization.

195399694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80859.

The product of its digits is 2361960, while the sum is 55.

The square root of 195399694 is about 13978.5440586636. The cubic root of 195399694 is about 580.2849313451.

The spelling of 195399694 in words is "one hundred ninety-five million, three hundred ninety-nine thousand, six hundred ninety-four".