194427018 has 24 divisors (see below), whose sum is σ = 421531968. Its totient is φ = 64766952.

The previous prime is 194427017. The next prime is 194427029. The reversal of 194427018 is 810724491.

194427018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (194427017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38805 + ... + 43527.

It is an arithmetic number, because the mean of its divisors is an integer number (17563832).

Almost surely, 2^194427018 is an apocalyptic number.

194427018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

194427018 is an abundant number, since it is smaller than the sum of its proper divisors (227104950).

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

194427018 is a wasteful number, since it uses less digits than its factorization.

194427018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7018 (or 7015 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 194427018 is about 13943.7089040183. The cubic root of 194427018 is about 579.3204665492.

The spelling of 194427018 in words is "one hundred ninety-four million, four hundred twenty-seven thousand, eighteen".