189306044 has 12 divisors (see below), whose sum is σ = 348721800. Its totient is φ = 89671248.

The previous prime is 189306037. The next prime is 189306049. The reversal of 189306044 is 440603981.

It is a junction number, because it is equal to n+sod(n) for n = 189305995 and 189306013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189306049) 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 3 ways as a sum of consecutive naturals, for example, 1245359 + ... + 1245510.

It is an arithmetic number, because the mean of its divisors is an integer number (29060150).

Almost surely, 2^189306044 is an apocalyptic number.

It is an amenable number.

189306044 is a deficient number, since it is larger than the sum of its proper divisors (159415756).

189306044 is a wasteful number, since it uses less digits than its factorization.

189306044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490892 (or 2490890 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 189306044 is about 13758.8532952423. The cubic root of 189306044 is about 574.1889449889.

The spelling of 189306044 in words is "one hundred eighty-nine million, three hundred six thousand, forty-four".