9820256 has 12 divisors (see below), whose sum is σ = 19333692. Its totient is φ = 4910112.

The previous prime is 9820249. The next prime is 9820259. The reversal of 9820256 is 6520289.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 306883 = 9820256 / (9 + 8 + 2 + 0 + 2 + 5 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9820259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153410 + ... + 153473.

It is an arithmetic number, because the mean of its divisors is an integer number (1611141).

Almost surely, 2^9820256 is an apocalyptic number.

It is an amenable number.

9820256 is a deficient number, since it is larger than the sum of its proper divisors (9513436).

9820256 is a wasteful number, since it uses less digits than its factorization.

9820256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306893 (or 306885 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 9820256 is about 3133.7287693736. The cubic root of 9820256 is about 214.1448345539.

The spelling of 9820256 in words is "nine million, eight hundred twenty thousand, two hundred fifty-six".