9980438 has 16 divisors (see below), whose sum is σ = 16193520. Its totient is φ = 4586016.

The previous prime is 9980431. The next prime is 9980441. The reversal of 9980438 is 8340899.

It is a junction number, because it is equal to n+sod(n) for n = 9980395 and 9980404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9980431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6281 + ... + 7707.

It is an arithmetic number, because the mean of its divisors is an integer number (1012095).

Almost surely, 2^9980438 is an apocalyptic number.

9980438 is a deficient number, since it is larger than the sum of its proper divisors (6213082).

9980438 is a wasteful number, since it uses less digits than its factorization.

9980438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 9980438 is about 3159.1831222644. The cubic root of 9980438 is about 215.3028937942.

The spelling of 9980438 in words is "nine million, nine hundred eighty thousand, four hundred thirty-eight".