193912368 has 80 divisors (see below), whose sum is σ = 542631936. Its totient is φ = 59316480.

The previous prime is 193912361. The next prime is 193912393. The reversal of 193912368 is 863219391.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (193912361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118371 + ... + 119997.

Almost surely, 2^193912368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 193912368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271315968).

193912368 is an abundant number, since it is smaller than the sum of its proper divisors (348719568).

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

193912368 is a wasteful number, since it uses less digits than its factorization.

193912368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842 (or 1836 counting only the distinct ones).

The product of its digits is 69984, while the sum is 42.

The square root of 193912368 is about 13925.2421163871. The cubic root of 193912368 is about 578.8088594436.

The spelling of 193912368 in words is "one hundred ninety-three million, nine hundred twelve thousand, three hundred sixty-eight".