9442257 has 8 divisors (see below), whose sum is σ = 13734240. Its totient is φ = 5722560.

The previous prime is 9442249. The next prime is 9442283. The reversal of 9442257 is 7522449.

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

It is not a de Polignac number, because 9442257 - 2³ = 9442249 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 286129 = 9442257 / (9 + 4 + 4 + 2 + 2 + 5 + 7).

It is a d-powerful number, because it can be written as 9 + 4⁶ + 4¹⁰ + 2²² + 2²² + 5⁴ + 7³ .

9442257 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9442207) 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, 143032 + ... + 143097.

It is an arithmetic number, because the mean of its divisors is an integer number (1716780).

Almost surely, 2^9442257 is an apocalyptic number.

It is an amenable number.

9442257 is a deficient number, since it is larger than the sum of its proper divisors (4291983).

9442257 is a wasteful number, since it uses less digits than its factorization.

9442257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286143.

The product of its digits is 20160, while the sum is 33.

The square root of 9442257 is about 3072.8255726611. The cubic root of 9442257 is about 211.3612030790.

The spelling of 9442257 in words is "nine million, four hundred forty-two thousand, two hundred fifty-seven".