193349538 has 32 divisors (see below), whose sum is σ = 436086720. Its totient is φ = 63486720.

The previous prime is 193349489. The next prime is 193349561. The reversal of 193349538 is 835943391.

It is a junction number, because it is equal to n+sod(n) for n = 193349493 and 193349502.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 23103 + ... + 30338.

It is an arithmetic number, because the mean of its divisors is an integer number (13627710).

Almost surely, 2^193349538 is an apocalyptic number.

193349538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

193349538 is an abundant number, since it is smaller than the sum of its proper divisors (242737182).

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

193349538 is a wasteful number, since it uses less digits than its factorization.

193349538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53519 (or 53513 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 193349538 is about 13905.0184465897. The cubic root of 193349538 is about 578.2483198452.

The spelling of 193349538 in words is "one hundred ninety-three million, three hundred forty-nine thousand, five hundred thirty-eight".