9990038 has 8 divisors (see below), whose sum is σ = 15304032. Its totient is φ = 4888696.

The previous prime is 9990017. The next prime is 9990047. The reversal of 9990038 is 8300999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 9989983 and 9990010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53045 + ... + 53232.

It is an arithmetic number, because the mean of its divisors is an integer number (1913004).

Almost surely, 2^9990038 is an apocalyptic number.

9990038 is a deficient number, since it is larger than the sum of its proper divisors (5313994).

9990038 is a wasteful number, since it uses less digits than its factorization.

9990038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106326.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 9990038 is about 3160.7021371841. The cubic root of 9990038 is about 215.3719036388.

The spelling of 9990038 in words is "nine million, nine hundred ninety thousand, thirty-eight".