194213712 has 240 divisors, whose sum is σ = 669707136. Its totient is φ = 47308800.

The previous prime is 194213699. The next prime is 194213713. The reversal of 194213712 is 217312491.

It is a self number, because there is not a number n which added to its sum of digits gives 194213712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194213713) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 691012 + ... + 691292.

Almost surely, 2^194213712 is an apocalyptic number.

194213712 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 194213712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334853568).

194213712 is an abundant number, since it is smaller than the sum of its proper divisors (475493424).

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

194213712 is a wasteful number, since it uses less digits than its factorization.

194213712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 321 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 194213712 is about 13936.0579792135. The cubic root of 194213712 is about 579.1085314132.

The spelling of 194213712 in words is "one hundred ninety-four million, two hundred thirteen thousand, seven hundred twelve".