193801992 has 16 divisors (see below), whose sum is σ = 484505040. Its totient is φ = 64600656.

The previous prime is 193801991. The next prime is 193801999. The reversal of 193801992 is 299108391.

It is not an unprimeable number, because it can be changed into a prime (193801991) 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, 4037518 + ... + 4037565.

It is an arithmetic number, because the mean of its divisors is an integer number (30281565).

Almost surely, 2^193801992 is an apocalyptic number.

193801992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

193801992 is an abundant number, since it is smaller than the sum of its proper divisors (290703048).

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

193801992 is a wasteful number, since it uses less digits than its factorization.

193801992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8075092 (or 8075088 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 193801992 is about 13921.2783895733. The cubic root of 193801992 is about 578.6990181912.

The spelling of 193801992 in words is "one hundred ninety-three million, eight hundred one thousand, nine hundred ninety-two".