189048258 has 48 divisors (see below), whose sum is σ = 468898560. Its totient is φ = 53923968.

The previous prime is 189048239. The next prime is 189048259. The reversal of 189048258 is 852840981.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (189048259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126391 + ... + 127877.

It is an arithmetic number, because the mean of its divisors is an integer number (9768720).

Almost surely, 2^189048258 is an apocalyptic number.

189048258 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

189048258 is an abundant number, since it is smaller than the sum of its proper divisors (279850302).

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

189048258 is a wasteful number, since it uses less digits than its factorization.

189048258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511 (or 2508 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 189048258 is about 13749.4820993374. The cubic root of 189048258 is about 573.9281941847.

It can be divided in two parts, 1890482 and 58, that added together give a triangular number (1890540 = T₁₉₄₄).

The spelling of 189048258 in words is "one hundred eighty-nine million, forty-eight thousand, two hundred fifty-eight".