193243928 has 32 divisors (see below), whose sum is σ = 366336000. Its totient is φ = 95561760.

The previous prime is 193243903. The next prime is 193243937. The reversal of 193243928 is 829342391.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403193 + ... + 403671.

It is an arithmetic number, because the mean of its divisors is an integer number (11448000).

Almost surely, 2^193243928 is an apocalyptic number.

It is an amenable number.

193243928 is a deficient number, since it is larger than the sum of its proper divisors (173092072).

193243928 is a wasteful number, since it uses less digits than its factorization.

193243928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935 (or 931 counting only the distinct ones).

The product of its digits is 93312, while the sum is 41.

The square root of 193243928 is about 13901.2203780819. The cubic root of 193243928 is about 578.1430184518.

The spelling of 193243928 in words is "one hundred ninety-three million, two hundred forty-three thousand, nine hundred twenty-eight".