189450339 has 16 divisors (see below), whose sum is σ = 276095232. Its totient is φ = 114843168.

The previous prime is 189450337. The next prime is 189450353. The reversal of 189450339 is 933054981.

It is not a de Polignac number, because 189450339 - 2¹ = 189450337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189450339.

It is not an unprimeable number, because it can be changed into a prime (189450337) 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 15 ways as a sum of consecutive naturals, for example, 33639 + ... + 38864.

It is an arithmetic number, because the mean of its divisors is an integer number (17255952).

Almost surely, 2^189450339 is an apocalyptic number.

189450339 is a deficient number, since it is larger than the sum of its proper divisors (86644893).

189450339 is a wasteful number, since it uses less digits than its factorization.

189450339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72586.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 189450339 is about 13764.0960109991. The cubic root of 189450339 is about 574.3347962078.

The spelling of 189450339 in words is "one hundred eighty-nine million, four hundred fifty thousand, three hundred thirty-nine".