9399842 has 8 divisors (see below), whose sum is σ = 14114496. Its totient is φ = 4695012.

The previous prime is 9399829. The next prime is 9399869. The reversal of 9399842 is 2489939.

9399842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 9399793 and 9399802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803 + ... + 4409.

It is an arithmetic number, because the mean of its divisors is an integer number (1764312).

Almost surely, 2^9399842 is an apocalyptic number.

9399842 is a deficient number, since it is larger than the sum of its proper divisors (4714654).

9399842 is a wasteful number, since it uses less digits than its factorization.

9399842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4912.

The product of its digits is 139968, while the sum is 44.

The square root of 9399842 is about 3065.9161762840. The cubic root of 9399842 is about 211.0442469893.

Subtracting from 9399842 its reverse (2489939), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 9399842 in words is "nine million, three hundred ninety-nine thousand, eight hundred forty-two".