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9982440 = 233551379

9982440 has 192 divisors, whose sum is σ = 36691200. Its totient is φ = 2426112.

The previous prime is 9982433. The next prime is 9982457. The reversal of 9982440 is 442899.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 9982395 and 9982404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126321 + ... + 126399.

It is an arithmetic number, because the mean of its divisors is an integer number (191100).

Almost surely, 29982440 is an apocalyptic number.

9982440 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a pronic number, being equal to 3159×3160.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9982440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18345600).

9982440 is an abundant number, since it is smaller than the sum of its proper divisors (26708760).

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

9982440 is a wasteful number, since it uses less digits than its factorization.

9982440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 9982440 is about 3159.4999604368. The cubic root of 9982440 is about 215.3172888730.

The spelling of 9982440 in words is "nine million, nine hundred eighty-two thousand, four hundred forty".