194252668 has 6 divisors (see below), whose sum is σ = 339942176. Its totient is φ = 97126332.

The previous prime is 194252657. The next prime is 194252677. The reversal of 194252668 is 866252491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24281580 + ... + 24281587.

Almost surely, 2^194252668 is an apocalyptic number.

It is an amenable number.

194252668 is a deficient number, since it is larger than the sum of its proper divisors (145689508).

194252668 is a wasteful number, since it uses less digits than its factorization.

194252668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48563171 (or 48563169 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 194252668 is about 13937.4555784045. The cubic root of 194252668 is about 579.1472486310.

The spelling of 194252668 in words is "one hundred ninety-four million, two hundred fifty-two thousand, six hundred sixty-eight".