194422656 has 128 divisors (see below), whose sum is σ = 541326240. Its totient is φ = 61767680.

The previous prime is 194422643. The next prime is 194422661. The reversal of 194422656 is 656224491.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 834316 + ... + 834548.

Almost surely, 2^194422656 is an apocalyptic number.

194422656 is a gapful number since it is divisible by the number (16) 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 194422656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270663120).

194422656 is an abundant number, since it is smaller than the sum of its proper divisors (346903584).

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

194422656 is a wasteful number, since it uses less digits than its factorization.

194422656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 332 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 194422656 is about 13943.5524885160. The cubic root of 194422656 is about 579.3161341356.

The spelling of 194422656 in words is "one hundred ninety-four million, four hundred twenty-two thousand, six hundred fifty-six".