9432640 has 56 divisors (see below), whose sum is σ = 25676352. Its totient is φ = 3233280.

The previous prime is 9432623. The next prime is 9432653. The reversal of 9432640 is 462349.

9432640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 9432599 and 9432608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135 + ... + 4345.

Almost surely, 2^9432640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9432640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12838176).

9432640 is an abundant number, since it is smaller than the sum of its proper divisors (16243712).

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

9432640 is a wasteful number, since it uses less digits than its factorization.

9432640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4235 (or 4225 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 9432640 is about 3071.2603276180. The cubic root of 9432640 is about 211.2894211179.

Adding to 9432640 its reverse (462349), we get a palindrome (9894989).

The spelling of 9432640 in words is "nine million, four hundred thirty-two thousand, six hundred forty".