189289548 has 90 divisors (see below), whose sum is σ = 575678796. Its totient is φ = 54078192.

The previous prime is 189289547. The next prime is 189289559. The reversal of 189289548 is 845982981.

189289548 is a `hidden beast` number, since 1 + 8 + 92 + 8 + 9 + 548 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 189289494 and 189289503.

It is not an unprimeable number, because it can be changed into a prime (189289547) 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 29 ways as a sum of consecutive naturals, for example, 9915 + ... + 21837.

Almost surely, 2^189289548 is an apocalyptic number.

189289548 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189289548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287839398).

189289548 is an abundant number, since it is smaller than the sum of its proper divisors (386389248).

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

189289548 is a wasteful number, since it uses less digits than its factorization.

189289548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11953 (or 11935 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 54.

The square root of 189289548 is about 13758.2538136204. The cubic root of 189289548 is about 574.1722663596.

The spelling of 189289548 in words is "one hundred eighty-nine million, two hundred eighty-nine thousand, five hundred forty-eight".