438680 has 32 divisors (see below), whose sum is σ = 1077840. Its totient is φ = 159360.

The previous prime is 438671. The next prime is 438701. The reversal of 438680 is 86834.

It is a congruent number.

It is an unprimeable number.

438680 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59 + ... + 938.

2⁴³⁸⁶⁸⁰ is an apocalyptic number.

438680 is a gapful number since it is divisible by the number (40) 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 438680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538920).

438680 is an abundant number, since it is smaller than the sum of its proper divisors (639160).

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

438680 is a wasteful number, since it uses less digits than its factorization.

438680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019 (or 1015 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 438680 is about 662.3292232719. The cubic root of 438680 is about 75.9829139799.

The spelling of 438680 in words is "four hundred thirty-eight thousand, six hundred eighty".