189011748 has 12 divisors (see below), whose sum is σ = 441027440. Its totient is φ = 63003912.

The previous prime is 189011747. The next prime is 189011749. The reversal of 189011748 is 847110981.

It is an interprime number because it is at equal distance from previous prime (189011747) and next prime (189011749).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (189011747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7875478 + ... + 7875501.

Almost surely, 2^189011748 is an apocalyptic number.

It is an amenable number.

189011748 is an abundant number, since it is smaller than the sum of its proper divisors (252015692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189011748 is a wasteful number, since it uses less digits than its factorization.

189011748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15750986 (or 15750984 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 39.

The square root of 189011748 is about 13748.1543488572. The cubic root of 189011748 is about 573.8912451227.

The spelling of 189011748 in words is "one hundred eighty-nine million, eleven thousand, seven hundred forty-eight".