9216442 has 8 divisors (see below), whose sum is σ = 13847796. Its totient is φ = 4600512.

The previous prime is 9216437. The next prime is 9216443. The reversal of 9216442 is 2446129.

It can be written as a sum of positive squares in 2 ways, for example, as 8696601 + 519841 = 2949^2 + 721^2 .

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

It is a d-powerful number, because it can be written as 9⁶ + 2³ + 1 + 6⁷ + 4³ + 4⁷ + 2²³ .

It is a self number, because there is not a number n which added to its sum of digits gives 9216442.

It is not an unprimeable number, because it can be changed into a prime (9216443) 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 3 ways as a sum of consecutive naturals, for example, 2223 + ... + 4834.

Almost surely, 2^9216442 is an apocalyptic number.

9216442 is a deficient number, since it is larger than the sum of its proper divisors (4631354).

9216442 is a wasteful number, since it uses less digits than its factorization.

9216442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7712.

The product of its digits is 3456, while the sum is 28.

The square root of 9216442 is about 3035.8593511558. The cubic root of 9216442 is about 209.6626632415.

The spelling of 9216442 in words is "nine million, two hundred sixteen thousand, four hundred forty-two".