9926540 has 48 divisors (see below), whose sum is σ = 22800288. Its totient is φ = 3608064.

The previous prime is 9926513. The next prime is 9926561. The reversal of 9926540 is 456299.

It is a self number, because there is not a number n which added to its sum of digits gives 9926540.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18719 + ... + 19241.

It is an arithmetic number, because the mean of its divisors is an integer number (475006).

Almost surely, 2^9926540 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 9926540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11400144).

9926540 is an abundant number, since it is smaller than the sum of its proper divisors (12873748).

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

9926540 is a wasteful number, since it uses less digits than its factorization.

9926540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 9926540 is about 3150.6412045804. The cubic root of 9926540 is about 214.9146226719.

The spelling of 9926540 in words is "nine million, nine hundred twenty-six thousand, five hundred forty".