193909068 has 36 divisors (see below), whose sum is σ = 491670088. Its totient is φ = 64437120.

The previous prime is 193909063. The next prime is 193909069. The reversal of 193909068 is 860909391.

193909068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (193909063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3780 + ... + 20052.

Almost surely, 2^193909068 is an apocalyptic number.

193909068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

193909068 is an abundant number, since it is smaller than the sum of its proper divisors (297761020).

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

193909068 is a wasteful number, since it uses less digits than its factorization.

193909068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16614 (or 16609 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 193909068 is about 13925.1236260221. The cubic root of 193909068 is about 578.8055760359.

The spelling of 193909068 in words is "one hundred ninety-three million, nine hundred nine thousand, sixty-eight".