9442749 has 8 divisors (see below), whose sum is σ = 12654400. Its totient is φ = 6263136.

The previous prime is 9442747. The next prime is 9442759. The reversal of 9442749 is 9472449.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9442749 - 2¹ = 9442747 is a prime.

It is a d-powerful number, because it can be written as 9³ + 4 + 4⁶ + 2²³ + 7 + 4¹⁰ + 9³ .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9442747) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 7312 + ... + 8505.

It is an arithmetic number, because the mean of its divisors is an integer number (1581800).

Almost surely, 2^9442749 is an apocalyptic number.

It is an amenable number.

9442749 is a deficient number, since it is larger than the sum of its proper divisors (3211651).

9442749 is a wasteful number, since it uses less digits than its factorization.

9442749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16019.

The product of its digits is 72576, while the sum is 39.

The square root of 9442749 is about 3072.9056282288. The cubic root of 9442749 is about 211.3648740907.

The spelling of 9442749 in words is "nine million, four hundred forty-two thousand, seven hundred forty-nine".