191958052 has 24 divisors (see below), whose sum is σ = 394656192. Its totient is φ = 80541600.

The previous prime is 191958049. The next prime is 191958059. The reversal of 191958052 is 250859191.

It is a junction number, because it is equal to n+sod(n) for n = 191957996 and 191958014.

It is not an unprimeable number, because it can be changed into a prime (191958059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167224 + ... + 168367.

It is an arithmetic number, because the mean of its divisors is an integer number (16444008).

Almost surely, 2^191958052 is an apocalyptic number.

It is an amenable number.

191958052 is an abundant number, since it is smaller than the sum of its proper divisors (202698140).

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

191958052 is a wasteful number, since it uses less digits than its factorization.

191958052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335619 (or 335617 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 40.

The square root of 191958052 is about 13854.8927097975. The cubic root of 191958052 is about 576.8578115317.

The spelling of 191958052 in words is "one hundred ninety-one million, nine hundred fifty-eight thousand, fifty-two".