9039438 has 20 divisors (see below), whose sum is σ = 20255400. Its totient is φ = 3013092.

The previous prime is 9039431. The next prime is 9039469. The reversal of 9039438 is 8349309.

It is a super-2 number, since 2×9039438² = 163422878711688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9039431) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 27738 + ... + 28061.

It is an arithmetic number, because the mean of its divisors is an integer number (1012770).

Almost surely, 2^9039438 is an apocalyptic number.

9039438 is an abundant number, since it is smaller than the sum of its proper divisors (11215962).

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

9039438 is a wasteful number, since it uses less digits than its factorization.

9039438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55813 (or 55804 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 9039438 is about 3006.5658150122. The cubic root of 9039438 is about 208.3117704972.

The spelling of 9039438 in words is "nine million, thirty-nine thousand, four hundred thirty-eight".