189256942 has 8 divisors (see below), whose sum is σ = 324440496. Its totient is φ = 81110112.

The previous prime is 189256933. The next prime is 189256957. The reversal of 189256942 is 249652981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 189256892 and 189256901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6759163 + ... + 6759190.

It is an arithmetic number, because the mean of its divisors is an integer number (40555062).

Almost surely, 2^189256942 is an apocalyptic number.

189256942 is a deficient number, since it is larger than the sum of its proper divisors (135183554).

189256942 is a wasteful number, since it uses less digits than its factorization.

189256942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13518362.

The product of its digits is 311040, while the sum is 46.

The square root of 189256942 is about 13757.0688011655. The cubic root of 189256942 is about 574.1392965238.

The spelling of 189256942 in words is "one hundred eighty-nine million, two hundred fifty-six thousand, nine hundred forty-two".