9005438 has 16 divisors (see below), whose sum is σ = 15017856. Its totient is φ = 4021920.

The previous prime is 9005429. The next prime is 9005473. The reversal of 9005438 is 8345009.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9005438.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4781 + ... + 6392.

It is an arithmetic number, because the mean of its divisors is an integer number (938616).

Almost surely, 2^9005438 is an apocalyptic number.

9005438 is a deficient number, since it is larger than the sum of its proper divisors (6012418).

9005438 is a wasteful number, since it uses less digits than its factorization.

9005438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11219.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 9005438 is about 3000.9061964680. The cubic root of 9005438 is about 208.0502682992.

The spelling of 9005438 in words is "nine million, five thousand, four hundred thirty-eight".