9920241 has 6 divisors (see below), whose sum is σ = 14329250. Its totient is φ = 6613488.

The previous prime is 9920219. The next prime is 9920249. The reversal of 9920241 is 1420299.

It can be written as a sum of positive squares in only one way, i.e., 9790641 + 129600 = 3129^2 + 360^2 .

It is not a de Polignac number, because 9920241 - 2⁶ = 9920177 is a prime.

It is a super-2 number, since 2×9920241² = 196822362996162, which contains 22 as substring.

It is a Duffinian number.

9920241 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9920249) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 551116 + ... + 551133.

Almost surely, 2^9920241 is an apocalyptic number.

It is an amenable number.

9920241 is a deficient number, since it is larger than the sum of its proper divisors (4409009).

9920241 is a wasteful number, since it uses less digits than its factorization.

9920241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102255 (or 1102252 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 9920241 is about 3149.6414081606. The cubic root of 9920241 is about 214.8691542054.

The spelling of 9920241 in words is "nine million, nine hundred twenty thousand, two hundred forty-one".