194153856 has 256 divisors, whose sum is σ = 616896000. Its totient is φ = 53526528.

The previous prime is 194153809. The next prime is 194153881. The reversal of 194153856 is 658351491.

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 31 ways as a sum of consecutive naturals, for example, 2181460 + ... + 2181548.

It is an arithmetic number, because the mean of its divisors is an integer number (2409750).

Almost surely, 2^194153856 is an apocalyptic number.

194153856 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 194153856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308448000).

194153856 is an abundant number, since it is smaller than the sum of its proper divisors (422742144).

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

194153856 is a wasteful number, since it uses less digits than its factorization.

194153856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 149 counting only the distinct ones).

The product of its digits is 129600, while the sum is 42.

The square root of 194153856 is about 13933.9102910848. The cubic root of 194153856 is about 579.0490322125.

The spelling of 194153856 in words is "one hundred ninety-four million, one hundred fifty-three thousand, eight hundred fifty-six".