9509942 has 16 divisors (see below), whose sum is σ = 15414000. Its totient is φ = 4374432.

The previous prime is 9509911. The next prime is 9509947. The reversal of 9509942 is 2499059.

It is a junction number, because it is equal to n+sod(n) for n = 9509896 and 9509905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9509947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12608 + ... + 13340.

It is an arithmetic number, because the mean of its divisors is an integer number (963375).

Almost surely, 2^9509942 is an apocalyptic number.

9509942 is a deficient number, since it is larger than the sum of its proper divisors (5904058).

9509942 is a wasteful number, since it uses less digits than its factorization.

9509942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 9509942 is about 3083.8193851132. The cubic root of 9509942 is about 211.8650351355.

The spelling of 9509942 in words is "nine million, five hundred nine thousand, nine hundred forty-two".