194406912 has 320 divisors, whose sum is σ = 687456000. Its totient is φ = 54190080.

The previous prime is 194406911. The next prime is 194406931. The reversal of 194406912 is 219604491.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (194406911) 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 31 ways as a sum of consecutive naturals, for example, 4741612 + ... + 4741652.

It is an arithmetic number, because the mean of its divisors is an integer number (2148300).

Almost surely, 2^194406912 is an apocalyptic number.

194406912 is a gapful number since it is divisible by the number (12) 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 194406912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343728000).

194406912 is an abundant number, since it is smaller than the sum of its proper divisors (493049088).

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

194406912 is an frugal number, since it uses more digits than its factorization.

194406912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 194406912 is about 13942.9879150776. The cubic root of 194406912 is about 579.3004963843.

The spelling of 194406912 in words is "one hundred ninety-four million, four hundred six thousand, nine hundred twelve".