193900992 has 28 divisors (see below), whose sum is σ = 513030216. Its totient is φ = 64633600.

The previous prime is 193900981. The next prime is 193900999. The reversal of 193900992 is 299009391.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193900999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504759 + ... + 505142.

Almost surely, 2^193900992 is an apocalyptic number.

193900992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

193900992 is an abundant number, since it is smaller than the sum of its proper divisors (319129224).

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

193900992 is a wasteful number, since it uses less digits than its factorization.

193900992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009916 (or 1009906 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 42.

The square root of 193900992 is about 13924.8336435305. The cubic root of 193900992 is about 578.7975404847.

The spelling of 193900992 in words is "one hundred ninety-three million, nine hundred thousand, nine hundred ninety-two".