194487066 has 12 divisors (see below), whose sum is σ = 421388682. Its totient is φ = 64829016.

The previous prime is 194487023. The next prime is 194487077. The reversal of 194487066 is 660784491.

It can be written as a sum of positive squares in only one way, i.e., 177023025 + 17464041 = 13305^2 + 4179^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5402401 + ... + 5402436.

Almost surely, 2^194487066 is an apocalyptic number.

194487066 is an abundant number, since it is smaller than the sum of its proper divisors (226901616).

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

194487066 is a wasteful number, since it uses less digits than its factorization.

194487066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10804845 (or 10804842 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 194487066 is about 13945.8619669062. The cubic root of 194487066 is about 579.3801006732.

The spelling of 194487066 in words is "one hundred ninety-four million, four hundred eighty-seven thousand, sixty-six".