189478548 has 96 divisors (see below), whose sum is σ = 575205120. Its totient is φ = 52807680.

The previous prime is 189478537. The next prime is 189478561. The reversal of 189478548 is 845874981.

189478548 is a `hidden beast` number, since 1 + 8 + 94 + 7 + 8 + 548 = 666.

189478548 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 189478494 and 189478503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27940 + ... + 34052.

It is an arithmetic number, because the mean of its divisors is an integer number (5991720).

Almost surely, 2^189478548 is an apocalyptic number.

189478548 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 189478548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287602560).

189478548 is an abundant number, since it is smaller than the sum of its proper divisors (385726572).

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

189478548 is a wasteful number, since it uses less digits than its factorization.

189478548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6174 (or 6166 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 54.

The square root of 189478548 is about 13765.1207041566. The cubic root of 189478548 is about 574.3633007863.

It can be divided in two parts, 18947 and 8548, that added together give a triangular number (27495 = T₂₃₄).

The spelling of 189478548 in words is "one hundred eighty-nine million, four hundred seventy-eight thousand, five hundred forty-eight".