9860240 has 80 divisors (see below), whose sum is σ = 26040000. Its totient is φ = 3442176.

The previous prime is 9860237. The next prime is 9860273. The reversal of 9860240 is 420689.

It is a tau number, because it is divible by the number of its divisors (80).

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, 19511 + ... + 20009.

It is an arithmetic number, because the mean of its divisors is an integer number (325500).

Almost surely, 2^9860240 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 9860240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13020000).

9860240 is an abundant number, since it is smaller than the sum of its proper divisors (16179760).

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

9860240 is a wasteful number, since it uses less digits than its factorization.

9860240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 9860240 is about 3140.1019091743. The cubic root of 9860240 is about 214.4350772414.

It can be divided in two parts, 9860 and 240, that multiplied together give a triangular number (2366400 = T₂₁₇₅).

The spelling of 9860240 in words is "nine million, eight hundred sixty thousand, two hundred forty".