9922640 has 160 divisors (see below), whose sum is σ = 29998080. Its totient is φ = 2967552.

The previous prime is 9922613. The next prime is 9922651. The reversal of 9922640 is 462299.

It is a junction number, because it is equal to n+sod(n) for n = 9922597 and 9922606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211097 + ... + 211143.

It is an arithmetic number, because the mean of its divisors is an integer number (187488).

Almost surely, 2^9922640 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 9922640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14999040).

9922640 is an abundant number, since it is smaller than the sum of its proper divisors (20075440).

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

9922640 is a wasteful number, since it uses less digits than its factorization.

9922640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 9922640 is about 3150.0222221438. The cubic root of 9922640 is about 214.8864733262.

The spelling of 9922640 in words is "nine million, nine hundred twenty-two thousand, six hundred forty".