9489138 has 16 divisors (see below), whose sum is σ = 19009056. Its totient is φ = 3157920.

The previous prime is 9489121. The next prime is 9489149. The reversal of 9489138 is 8319849.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9489138.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5433 + ... + 6963.

It is an arithmetic number, because the mean of its divisors is an integer number (1188066).

Almost surely, 2^9489138 is an apocalyptic number.

9489138 is an abundant number, since it is smaller than the sum of its proper divisors (9519918).

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

9489138 is a wasteful number, since it uses less digits than its factorization.

9489138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569.

The product of its digits is 62208, while the sum is 42.

The square root of 9489138 is about 3080.4444484522. Note that the first 5 decimals coincide. The cubic root of 9489138 is about 211.7104299808.

The spelling of 9489138 in words is "nine million, four hundred eighty-nine thousand, one hundred thirty-eight".