194008660 has 12 divisors (see below), whose sum is σ = 407418228. Its totient is φ = 77603456.

The previous prime is 194008643. The next prime is 194008663. The reversal of 194008660 is 66800491.

It can be written as a sum of positive squares in 2 ways, for example, as 141039376 + 52969284 = 11876^2 + 7278^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194008663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4850197 + ... + 4850236.

It is an arithmetic number, because the mean of its divisors is an integer number (33951519).

Almost surely, 2^194008660 is an apocalyptic number.

194008660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194008660 is an abundant number, since it is smaller than the sum of its proper divisors (213409568).

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

194008660 is a wasteful number, since it uses less digits than its factorization.

194008660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9700442 (or 9700440 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 194008660 is about 13928.6991495976. The cubic root of 194008660 is about 578.9046508920.

The spelling of 194008660 in words is "one hundred ninety-four million, eight thousand, six hundred sixty".