9230640 has 40 divisors (see below), whose sum is σ = 28615728. Its totient is φ = 2461440.

The previous prime is 9230633. The next prime is 9230651. The reversal of 9230640 is 460329.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 9230640.

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, 18991 + ... + 19470.

Almost surely, 2^9230640 is an apocalyptic number.

It is an amenable number.

9230640 is an abundant number, since it is smaller than the sum of its proper divisors (19385088).

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

9230640 is a wasteful number, since it uses less digits than its factorization.

9230640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38477 (or 38471 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 9230640 is about 3038.1968336499. The cubic root of 9230640 is about 209.7702703206.

Adding to 9230640 its reverse (460329), we get a palindrome (9690969).

It can be divided in two parts, 9230 and 640, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 9230640 in words is "nine million, two hundred thirty thousand, six hundred forty".