9038440 has 16 divisors (see below), whose sum is σ = 20336580. Its totient is φ = 3615360.

The previous prime is 9038437. The next prime is 9038443. The reversal of 9038440 is 448309.

It is an interprime number because it is at equal distance from previous prime (9038437) and next prime (9038443).

It can be written as a sum of positive squares in 2 ways, for example, as 7650756 + 1387684 = 2766^2 + 1178^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9038399 and 9038408.

It is not an unprimeable number, because it can be changed into a prime (9038443) 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, 112941 + ... + 113020.

Almost surely, 2^9038440 is an apocalyptic number.

It is an amenable number.

9038440 is an abundant number, since it is smaller than the sum of its proper divisors (11298140).

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

9038440 is a wasteful number, since it uses less digits than its factorization.

9038440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225972 (or 225968 counting only the distinct ones).

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

The square root of 9038440 is about 3006.3998403406. The cubic root of 9038440 is about 208.3041039882.

It can be divided in two parts, 90 and 38440, that multiplied together give a square (3459600 = 1860²).

The spelling of 9038440 in words is "nine million, thirty-eight thousand, four hundred forty".