9948640 has 48 divisors (see below), whose sum is σ = 25316928. Its totient is φ = 3672576.

The previous prime is 9948637. The next prime is 9948643. The reversal of 9948640 is 468499.

It is an interprime number because it is at equal distance from previous prime (9948637) and next prime (9948643).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 9948593 and 9948602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9948643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312 + ... + 4471.

It is an arithmetic number, because the mean of its divisors is an integer number (527436).

Almost surely, 2^9948640 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 9948640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12658464).

9948640 is an abundant number, since it is smaller than the sum of its proper divisors (15368288).

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

9948640 is a wasteful number, since it uses less digits than its factorization.

9948640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4811 (or 4803 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 9948640 is about 3154.1464772582. The cubic root of 9948640 is about 215.0739965236.

The spelling of 9948640 in words is "nine million, nine hundred forty-eight thousand, six hundred forty".