9000438 has 8 divisors (see below), whose sum is σ = 18000888. Its totient is φ = 3000144.

The previous prime is 9000427. The next prime is 9000451. The reversal of 9000438 is 8340009.

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

9000438 is an admirable number.

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 750031 + ... + 750042.

It is an arithmetic number, because the mean of its divisors is an integer number (2250111).

Almost surely, 2^9000438 is an apocalyptic number.

9000438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9000438 is a wasteful number, since it uses less digits than its factorization.

9000438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500078.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 9000438 is about 3000.0729991119. The cubic root of 9000438 is about 208.0117566087.

The spelling of 9000438 in words is "nine million, four hundred thirty-eight", and thus it is an aban number.