438223808 has 28 divisors (see below), whose sum is σ = 948656472. Its totient is φ = 199192320.

The previous prime is 438223801. The next prime is 438223813. The reversal of 438223808 is 808322834.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438223801) 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 in 3 ways as a sum of consecutive naturals, for example, 310535 + ... + 311942.

Almost surely, 2^438223808 is an apocalyptic number.

It is an amenable number.

438223808 is an abundant number, since it is smaller than the sum of its proper divisors (510432664).

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

438223808 is a wasteful number, since it uses less digits than its factorization.

438223808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622500 (or 622490 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 438223808 is about 20933.7958335320. The cubic root of 438223808 is about 759.5656613341.

The spelling of 438223808 in words is "four hundred thirty-eight million, two hundred twenty-three thousand, eight hundred eight".