194318420 has 24 divisors (see below), whose sum is σ = 411886944. Its totient is φ = 77000096.

The previous prime is 194318387. The next prime is 194318431. The reversal of 194318420 is 24813491.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 43262 + ... + 47541.

It is an arithmetic number, because the mean of its divisors is an integer number (17161956).

Almost surely, 2^194318420 is an apocalyptic number.

194318420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194318420 is an abundant number, since it is smaller than the sum of its proper divisors (217568524).

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

194318420 is a wasteful number, since it uses less digits than its factorization.

194318420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90919 (or 90917 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 194318420 is about 13939.8142024921. The cubic root of 194318420 is about 579.2125858617.

The spelling of 194318420 in words is "one hundred ninety-four million, three hundred eighteen thousand, four hundred twenty".