9238640 has 40 divisors (see below), whose sum is σ = 22418208. Its totient is φ = 3534080.

The previous prime is 9238637. The next prime is 9238681. The reversal of 9238640 is 468329.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 9238597 and 9238606.

It is a congruent number.

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, 671 + ... + 4350.

Almost surely, 2^9238640 is an apocalyptic number.

It is an amenable number.

9238640 is an abundant number, since it is smaller than the sum of its proper divisors (13179568).

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

9238640 is a wasteful number, since it uses less digits than its factorization.

9238640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057 (or 5051 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 9238640 is about 3039.5131189057. The cubic root of 9238640 is about 209.8308539705.

The spelling of 9238640 in words is "nine million, two hundred thirty-eight thousand, six hundred forty".