194936868 has 240 divisors, whose sum is σ = 630330624. Its totient is φ = 51321600.

The previous prime is 194936867. The next prime is 194936879. The reversal of 194936868 is 868639491.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (194936867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1930018 + ... + 1930118.

Almost surely, 2^194936868 is an apocalyptic number.

194936868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194936868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315165312).

194936868 is an abundant number, since it is smaller than the sum of its proper divisors (435393756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

194936868 is a wasteful number, since it uses less digits than its factorization.

194936868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 173 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 194936868 is about 13961.9793725675. The cubic root of 194936868 is about 579.8264125788.

The spelling of 194936868 in words is "one hundred ninety-four million, nine hundred thirty-six thousand, eight hundred sixty-eight".