438630912 has 60 divisors (see below), whose sum is σ = 1265931810. Its totient is φ = 146208768.

The previous prime is 438630911. The next prime is 438630919. The reversal of 438630912 is 219036834.

438630912 is a `hidden beast` number, since 4 + 3 + 8 + 630 + 9 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 412252416 + 26378496 = 20304^2 + 5136^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (438630911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42987 + ... + 52202.

Almost surely, 2^438630912 is an apocalyptic number.

It is an amenable number.

438630912 is an abundant number, since it is smaller than the sum of its proper divisors (827300898).

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

438630912 is an equidigital number, since it uses as much as digits as its factorization.

438630912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95213 (or 95194 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 438630912 is about 20943.5171831285. The cubic root of 438630912 is about 759.8007972839.

The spelling of 438630912 in words is "four hundred thirty-eight million, six hundred thirty thousand, nine hundred twelve".