194955830 has 16 divisors (see below), whose sum is σ = 371563200. Its totient is φ = 73395072.

The previous prime is 194955829. The next prime is 194955841. The reversal of 194955830 is 38559491.

It is a happy number.

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, 573230 + ... + 573569.

It is an arithmetic number, because the mean of its divisors is an integer number (23222700).

Almost surely, 2^194955830 is an apocalyptic number.

194955830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194955830 is a deficient number, since it is larger than the sum of its proper divisors (176607370).

194955830 is a wasteful number, since it uses less digits than its factorization.

194955830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146823.

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 194955830 is about 13962.6584144997. The cubic root of 194955830 is about 579.8452123610.

The spelling of 194955830 in words is "one hundred ninety-four million, nine hundred fifty-five thousand, eight hundred thirty".