9404942 has 4 divisors (see below), whose sum is σ = 14107416. Its totient is φ = 4702470.

The previous prime is 9404921. The next prime is 9404947. The reversal of 9404942 is 2494049.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2494049 = 227 ⋅10987.

It is a junction number, because it is equal to n+sod(n) for n = 9404899 and 9404908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9404947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2351234 + ... + 2351237.

It is an arithmetic number, because the mean of its divisors is an integer number (3526854).

Almost surely, 2^9404942 is an apocalyptic number.

9404942 is a deficient number, since it is larger than the sum of its proper divisors (4702474).

9404942 is a wasteful number, since it uses less digits than its factorization.

9404942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4702473.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 9404942 is about 3066.7477887821. The cubic root of 9404942 is about 211.0824083066.

The spelling of 9404942 in words is "nine million, four hundred four thousand, nine hundred forty-two".