438284388 has 24 divisors (see below), whose sum is σ = 1050304192. Its totient is φ = 142146144.

The previous prime is 438284387. The next prime is 438284393. The reversal of 438284388 is 883482834.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (438284387) 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, 493120 + ... + 494007.

Almost surely, 2^438284388 is an apocalyptic number.

It is an amenable number.

438284388 is an abundant number, since it is smaller than the sum of its proper divisors (612019804).

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

438284388 is a wasteful number, since it uses less digits than its factorization.

438284388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987171 (or 987169 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 48.

The square root of 438284388 is about 20935.2427260827. The cubic root of 438284388 is about 759.6006604729.

The spelling of 438284388 in words is "four hundred thirty-eight million, two hundred eighty-four thousand, three hundred eighty-eight".