9040239 has 12 divisors (see below), whose sum is σ = 14062776. Its totient is φ = 5563152.

The previous prime is 9040237. The next prime is 9040249. The reversal of 9040239 is 9320409.

It is not a de Polignac number, because 9040239 - 2¹ = 9040237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9040231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38517 + ... + 38750.

It is an arithmetic number, because the mean of its divisors is an integer number (1171898).

Almost surely, 2^9040239 is an apocalyptic number.

9040239 is a deficient number, since it is larger than the sum of its proper divisors (5022537).

9040239 is a wasteful number, since it uses less digits than its factorization.

9040239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77286 (or 77283 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 9040239 is about 3006.6990205207. The cubic root of 9040239 is about 208.3179232691.

The spelling of 9040239 in words is "nine million, forty thousand, two hundred thirty-nine".