438684336 has 100 divisors (see below), whose sum is σ = 1324973232. Its totient is φ = 139860864.

The previous prime is 438684319. The next prime is 438684341. The reversal of 438684336 is 633486834.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 438684291 and 438684300.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 22450 + ... + 37166.

Almost surely, 2^438684336 is an apocalyptic number.

438684336 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 438684336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662486616).

438684336 is an abundant number, since it is smaller than the sum of its proper divisors (886288896).

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

438684336 is a wasteful number, since it uses less digits than its factorization.

438684336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14760 (or 14745 counting only the distinct ones).

The product of its digits is 995328, while the sum is 45.

The square root of 438684336 is about 20944.7925747666. The cubic root of 438684336 is about 759.8316432251.

The spelling of 438684336 in words is "four hundred thirty-eight million, six hundred eighty-four thousand, three hundred thirty-six".