9421240 has 32 divisors (see below), whose sum is σ = 21293280. Its totient is φ = 3751552.

The previous prime is 9421189. The next prime is 9421261. The reversal of 9421240 is 421249.

9421240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 12309 + ... + 13051.

It is an arithmetic number, because the mean of its divisors is an integer number (665415).

Almost surely, 2^9421240 is an apocalyptic number.

It is an amenable number.

9421240 is an abundant number, since it is smaller than the sum of its proper divisors (11872040).

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

9421240 is a wasteful number, since it uses less digits than its factorization.

9421240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 9421240 is about 3069.4038509131. The cubic root of 9421240 is about 211.2042674949.

Adding to 9421240 its reverse (421249), we get a palindrome (9842489).

The spelling of 9421240 in words is "nine million, four hundred twenty-one thousand, two hundred forty".