194327664 has 40 divisors (see below), whose sum is σ = 513693312. Its totient is φ = 63268800.

The previous prime is 194327641. The next prime is 194327669. The reversal of 194327664 is 466723491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194327669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45012 + ... + 49139.

Almost surely, 2^194327664 is an apocalyptic number.

It is an amenable number.

194327664 is an abundant number, since it is smaller than the sum of its proper divisors (319365648).

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

194327664 is a wasteful number, since it uses less digits than its factorization.

194327664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94205 (or 94199 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 194327664 is about 13940.1457668132. The cubic root of 194327664 is about 579.2217703680.

The spelling of 194327664 in words is "one hundred ninety-four million, three hundred twenty-seven thousand, six hundred sixty-four".