8440338 has 16 divisors (see below), whose sum is σ = 17119296. Its totient is φ = 2773680.

The previous prime is 8440331. The next prime is 8440343. The reversal of 8440338 is 8330448.

It is not an unprimeable number, because it can be changed into a prime (8440331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9481 + ... + 10332.

It is an arithmetic number, because the mean of its divisors is an integer number (1069956).

Almost surely, 2^8440338 is an apocalyptic number.

8440338 is an abundant number, since it is smaller than the sum of its proper divisors (8678958).

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

8440338 is a wasteful number, since it uses less digits than its factorization.

8440338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19889.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 8440338 is about 2905.2259808834. The cubic root of 8440338 is about 203.6041439221.

It can be divided in two parts, 8440 and 338, that added together give a palindrome (8778).

The spelling of 8440338 in words is "eight million, four hundred forty thousand, three hundred thirty-eight".