195998930 has 16 divisors (see below), whose sum is σ = 360305280. Its totient is φ = 76731312.

The previous prime is 195998903. The next prime is 195998951. The reversal of 195998930 is 39899591.

It is a super-2 number, since 2×195998930² = 76831161122289800, which contains 22 as substring.

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, 208040 + ... + 208979.

It is an arithmetic number, because the mean of its divisors is an integer number (22519080).

Almost surely, 2^195998930 is an apocalyptic number.

195998930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195998930 is a deficient number, since it is larger than the sum of its proper divisors (164306350).

195998930 is a wasteful number, since it uses less digits than its factorization.

195998930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417073.

The product of its (nonzero) digits is 787320, while the sum is 53.

The square root of 195998930 is about 13999.9617856621. The cubic root of 195998930 is about 580.8775163135.

The spelling of 195998930 in words is "one hundred ninety-five million, nine hundred ninety-eight thousand, nine hundred thirty".