193140328 has 8 divisors (see below), whose sum is σ = 362138130. Its totient is φ = 96570160.

The previous prime is 193140313. The next prime is 193140329. The reversal of 193140328 is 823041391.

It can be written as a sum of positive squares in only one way, i.e., 158306724 + 34833604 = 12582^2 + 5902^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 193140328.

It is not an unprimeable number, because it can be changed into a prime (193140329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12071263 + ... + 12071278.

Almost surely, 2^193140328 is an apocalyptic number.

It is an amenable number.

193140328 is a deficient number, since it is larger than the sum of its proper divisors (168997802).

193140328 is a wasteful number, since it uses less digits than its factorization.

193140328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24142547 (or 24142543 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 193140328 is about 13897.4935869746. The cubic root of 193140328 is about 578.0396839011.

The spelling of 193140328 in words is "one hundred ninety-three million, one hundred forty thousand, three hundred twenty-eight".