9994942 has 4 divisors (see below), whose sum is σ = 14992416. Its totient is φ = 4997470.

The previous prime is 9994913. The next prime is 9994951. The reversal of 9994942 is 2494999.

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

It is a junction number, because it is equal to n+sod(n) for n = 9994892 and 9994901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2498734 + ... + 2498737.

It is an arithmetic number, because the mean of its divisors is an integer number (3748104).

Almost surely, 2^9994942 is an apocalyptic number.

9994942 is a deficient number, since it is larger than the sum of its proper divisors (4997474).

9994942 is a wasteful number, since it uses less digits than its factorization.

9994942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4997473.

The product of its digits is 209952, while the sum is 46.

The square root of 9994942 is about 3161.4778189954. The cubic root of 9994942 is about 215.4071391084.

The spelling of 9994942 in words is "nine million, nine hundred ninety-four thousand, nine hundred forty-two".