8385438 has 16 divisors (see below), whose sum is σ = 17312256. Its totient is φ = 2704920.

The previous prime is 8385431. The next prime is 8385439. The reversal of 8385438 is 8345838.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8385396 and 8385405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8385431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22356 + ... + 22727.

It is an arithmetic number, because the mean of its divisors is an integer number (1082016).

Almost surely, 2^8385438 is an apocalyptic number.

8385438 is an abundant number, since it is smaller than the sum of its proper divisors (8926818).

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

8385438 is a wasteful number, since it uses less digits than its factorization.

8385438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45119.

The product of its digits is 92160, while the sum is 39.

The square root of 8385438 is about 2895.7620758619. The cubic root of 8385438 is about 203.1617370398.

The spelling of 8385438 in words is "eight million, three hundred eighty-five thousand, four hundred thirty-eight".