194976768 has 88 divisors (see below), whose sum is σ = 593990272. Its totient is φ = 55701504.

The previous prime is 194976737. The next prime is 194976779. The reversal of 194976768 is 867679491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16971 + ... + 26037.

Almost surely, 2^194976768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194976768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296995136).

194976768 is an abundant number, since it is smaller than the sum of its proper divisors (399013504).

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

194976768 is an equidigital number, since it uses as much as digits as its factorization.

194976768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9097 (or 9079 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 57.

The square root of 194976768 is about 13963.4081799538. The cubic root of 194976768 is about 579.8659698225.

The spelling of 194976768 in words is "one hundred ninety-four million, nine hundred seventy-six thousand, seven hundred sixty-eight".