194681856 has 88 divisors (see below), whose sum is σ = 524032000. Its totient is φ = 64253952.

The previous prime is 194681803. The next prime is 194681857. The reversal of 194681856 is 658186491.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194681857) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 389895 + ... + 390393.

Almost surely, 2^194681856 is an apocalyptic number.

194681856 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 194681856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262016000).

194681856 is an abundant number, since it is smaller than the sum of its proper divisors (329350144).

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

194681856 is a wasteful number, since it uses less digits than its factorization.

194681856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 631 counting only the distinct ones).

The product of its digits is 414720, while the sum is 48.

The square root of 194681856 is about 13952.8440111685. The cubic root of 194681856 is about 579.5734636482.

The spelling of 194681856 in words is "one hundred ninety-four million, six hundred eighty-one thousand, eight hundred fifty-six".