9980242 has 4 divisors (see below), whose sum is σ = 14970366. Its totient is φ = 4990120.

The previous prime is 9980239. The next prime is 9980249. The reversal of 9980242 is 2420899.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9979281 + 961 = 3159^2 + 31^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9980198 and 9980207.

It is not an unprimeable number, because it can be changed into a prime (9980249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2495059 + ... + 2495062.

Almost surely, 2^9980242 is an apocalyptic number.

9980242 is a deficient number, since it is larger than the sum of its proper divisors (4990124).

9980242 is a wasteful number, since it uses less digits than its factorization.

9980242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4990123.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 9980242 is about 3159.1521014348. The cubic root of 9980242 is about 215.3014843823.

The spelling of 9980242 in words is "nine million, nine hundred eighty thousand, two hundred forty-two".