193238442 has 48 divisors (see below), whose sum is σ = 426430368. Its totient is φ = 63231840.

The previous prime is 193238429. The next prime is 193238443. The reversal of 193238442 is 244832391.

193238442 is a `hidden beast` number, since 193 + 23 + 8 + 442 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 193238397 and 193238406.

It is not an unprimeable number, because it can be changed into a prime (193238443) 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 23 ways as a sum of consecutive naturals, for example, 314928 + ... + 315540.

It is an arithmetic number, because the mean of its divisors is an integer number (8883966).

Almost surely, 2^193238442 is an apocalyptic number.

193238442 is an abundant number, since it is smaller than the sum of its proper divisors (233191926).

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

193238442 is a wasteful number, since it uses less digits than its factorization.

193238442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 912 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 193238442 is about 13901.0230558761. The cubic root of 193238442 is about 578.1375474345.

The spelling of 193238442 in words is "one hundred ninety-three million, two hundred thirty-eight thousand, four hundred forty-two".