8840438 has 4 divisors (see below), whose sum is σ = 13260660. Its totient is φ = 4420218.

The previous prime is 8840437. The next prime is 8840443. The reversal of 8840438 is 8340488.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 8840398 and 8840407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8840431) 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 as a sum of consecutive naturals, namely, 2210108 + ... + 2210111.

It is an arithmetic number, because the mean of its divisors is an integer number (3315165).

Almost surely, 2^8840438 is an apocalyptic number.

8840438 is a deficient number, since it is larger than the sum of its proper divisors (4420222).

8840438 is a wasteful number, since it uses less digits than its factorization.

8840438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4420221.

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 8840438 is about 2973.2874062223. The cubic root of 8840438 is about 206.7717773791.

The spelling of 8840438 in words is "eight million, eight hundred forty thousand, four hundred thirty-eight".