194478016 has 28 divisors (see below), whose sum is σ = 389908288. Its totient is φ = 96233472.

The previous prime is 194478007. The next prime is 194478049. The reversal of 194478016 is 610874491.

It is a self number, because there is not a number n which added to its sum of digits gives 194478016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9456 + ... + 21871.

It is an arithmetic number, because the mean of its divisors is an integer number (13925296).

Almost surely, 2^194478016 is an apocalyptic number.

194478016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

194478016 is an abundant number, since it is smaller than the sum of its proper divisors (195430272).

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

194478016 is an equidigital number, since it uses as much as digits as its factorization.

194478016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31436 (or 31426 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 194478016 is about 13945.5374941233. The cubic root of 194478016 is about 579.3711138353.

The spelling of 194478016 in words is "one hundred ninety-four million, four hundred seventy-eight thousand, sixteen".