438427648 has 56 divisors (see below), whose sum is σ = 886647960. Its totient is φ = 216760320.

The previous prime is 438427631. The next prime is 438427651. The reversal of 438427648 is 846724834.

It is a junction number, because it is equal to n+sod(n) for n = 438427598 and 438427607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892683 + ... + 893173.

Almost surely, 2^438427648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 438427648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443323980).

438427648 is an abundant number, since it is smaller than the sum of its proper divisors (448220312).

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

438427648 is an equidigital number, since it uses as much as digits as its factorization.

438427648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 602 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 46.

The square root of 438427648 is about 20938.6639497366. The cubic root of 438427648 is about 759.6834138473.

The spelling of 438427648 in words is "four hundred thirty-eight million, four hundred twenty-seven thousand, six hundred forty-eight".