191958046 has 16 divisors (see below), whose sum is σ = 343378944. Its totient is φ = 78690744.

The previous prime is 191957981. The next prime is 191958049. The reversal of 191958046 is 640859191.

It is a junction number, because it is equal to n+sod(n) for n = 191957993 and 191958011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191958049) 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 7 ways as a sum of consecutive naturals, for example, 297750 + ... + 298393.

It is an arithmetic number, because the mean of its divisors is an integer number (21461184).

Almost surely, 2^191958046 is an apocalyptic number.

191958046 is a deficient number, since it is larger than the sum of its proper divisors (151420898).

191958046 is a wasteful number, since it uses less digits than its factorization.

191958046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596175.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 191958046 is about 13854.8924932675. The cubic root of 191958046 is about 576.8578055214.

The spelling of 191958046 in words is "one hundred ninety-one million, nine hundred fifty-eight thousand, forty-six".