9432138 has 8 divisors (see below), whose sum is σ = 18864288. Its totient is φ = 3144044.

The previous prime is 9432121. The next prime is 9432149. The reversal of 9432138 is 8312349.

It is a sphenic number, since it is the product of 3 distinct primes.

9432138 is an admirable number.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786006 + ... + 786017.

It is an arithmetic number, because the mean of its divisors is an integer number (2358036).

Almost surely, 2^9432138 is an apocalyptic number.

9432138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9432138 is a wasteful number, since it uses less digits than its factorization.

9432138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572028.

The product of its digits is 5184, while the sum is 30.

The square root of 9432138 is about 3071.1786011237. The cubic root of 9432138 is about 211.2856728152.

It can be divided in two parts, 943 and 2138, that added together give a triangular number (3081 = T₇₈).

The spelling of 9432138 in words is "nine million, four hundred thirty-two thousand, one hundred thirty-eight".