194053968 has 140 divisors (see below), whose sum is σ = 572487168. Its totient is φ = 63685440.

The previous prime is 194053933. The next prime is 194053991. The reversal of 194053968 is 869350491.

It is a happy number.

194053968 is a `hidden beast` number, since 19 + 40 + 539 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1481263 + ... + 1481393.

Almost surely, 2^194053968 is an apocalyptic number.

194053968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194053968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286243584).

194053968 is an abundant number, since it is smaller than the sum of its proper divisors (378433200).

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

194053968 is a wasteful number, since it uses less digits than its factorization.

194053968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 194053968 is about 13930.3254807632. The cubic root of 194053968 is about 578.9497124034.

The spelling of 194053968 in words is "one hundred ninety-four million, fifty-three thousand, nine hundred sixty-eight".