189429361 has 8 divisors (see below), whose sum is σ = 206770464. Its totient is φ = 172108320.

The previous prime is 189429347. The next prime is 189429377. The reversal of 189429361 is 163924981.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 189429361 - 2⁹ = 189428849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189429341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20325 + ... + 28141.

It is an arithmetic number, because the mean of its divisors is an integer number (25846308).

Almost surely, 2^189429361 is an apocalyptic number.

189429361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

189429361 is a deficient number, since it is larger than the sum of its proper divisors (17341103).

189429361 is a wasteful number, since it uses less digits than its factorization.

189429361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10031.

The product of its digits is 93312, while the sum is 43.

The square root of 189429361 is about 13763.3339347703. Note that the first 3 decimals coincide. The cubic root of 189429361 is about 574.3135965623.

The spelling of 189429361 in words is "one hundred eighty-nine million, four hundred twenty-nine thousand, three hundred sixty-one".