189369648 has 60 divisors (see below), whose sum is σ = 570744720. Its totient is φ = 58267008.

The previous prime is 189369643. The next prime is 189369659. The reversal of 189369648 is 846963981.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 189369594 and 189369603.

It is not an unprimeable number, because it can be changed into a prime (189369641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48708 + ... + 52451.

It is an arithmetic number, because the mean of its divisors is an integer number (9512412).

Almost surely, 2^189369648 is an apocalyptic number.

189369648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

189369648 is an abundant number, since it is smaller than the sum of its proper divisors (381375072).

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

189369648 is a wasteful number, since it uses less digits than its factorization.

189369648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101186 (or 101177 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 189369648 is about 13761.1644856095. The cubic root of 189369648 is about 574.2532440881.

The spelling of 189369648 in words is "one hundred eighty-nine million, three hundred sixty-nine thousand, six hundred forty-eight".