193948438 has 4 divisors (see below), whose sum is σ = 290922660. Its totient is φ = 96974218.

The previous prime is 193948423. The next prime is 193948481. The reversal of 193948438 is 834849391.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 834849391 = 47 ⋅17762753.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 193948391 and 193948400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48487108 + ... + 48487111.

It is an arithmetic number, because the mean of its divisors is an integer number (72730665).

Almost surely, 2^193948438 is an apocalyptic number.

193948438 is a deficient number, since it is larger than the sum of its proper divisors (96974222).

193948438 is an equidigital number, since it uses as much as digits as its factorization.

193948438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96974221.

The product of its digits is 746496, while the sum is 49.

The square root of 193948438 is about 13926.5371862499. The cubic root of 193948438 is about 578.8447456559.

The spelling of 193948438 in words is "one hundred ninety-three million, nine hundred forty-eight thousand, four hundred thirty-eight".