194442426 has 24 divisors (see below), whose sum is σ = 421765344. Its totient is φ = 64741320.

The previous prime is 194442401. The next prime is 194442427. The reversal of 194442426 is 624244491.

It is a happy number.

194442426 is a `hidden beast` number, since 194 + 4 + 42 + 426 = 666.

It is not an unprimeable number, because it can be changed into a prime (194442427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11821 + ... + 22991.

It is an arithmetic number, because the mean of its divisors is an integer number (17573556).

Almost surely, 2^194442426 is an apocalyptic number.

194442426 is an abundant number, since it is smaller than the sum of its proper divisors (227322918).

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

194442426 is a wasteful number, since it uses less digits than its factorization.

194442426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12146 (or 12143 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 194442426 is about 13944.2614003037. The cubic root of 194442426 is about 579.3357695218.

The spelling of 194442426 in words is "one hundred ninety-four million, four hundred forty-two thousand, four hundred twenty-six".