9942039 has 6 divisors (see below), whose sum is σ = 14360736. Its totient is φ = 6628020.

The previous prime is 9942029. The next prime is 9942043. The reversal of 9942039 is 9302499.

It is not a de Polignac number, because 9942039 - 2⁵ = 9942007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9941994 and 9942012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9942029) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 552327 + ... + 552344.

It is an arithmetic number, because the mean of its divisors is an integer number (2393456).

Almost surely, 2^9942039 is an apocalyptic number.

9942039 is a deficient number, since it is larger than the sum of its proper divisors (4418697).

9942039 is a wasteful number, since it uses less digits than its factorization.

9942039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104677 (or 1104674 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 9942039 is about 3153.0999032698. The cubic root of 9942039 is about 215.0264182428.

The spelling of 9942039 in words is "nine million, nine hundred forty-two thousand, thirty-nine".