438930 has 24 divisors (see below), whose sum is σ = 1141452. Its totient is φ = 117024.

The previous prime is 438913. The next prime is 438937. The reversal of 438930 is 39834.

It can be written as a sum of positive squares in 2 ways, for example, as 423801 + 15129 = 651^2 + 123^2 .

It is a junction number, because it is equal to n+sod(n) for n = 438894 and 438903.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 438930.

It is not an unprimeable number, because it can be changed into a prime (438937) by changing a digit.

438930 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 11 ways as a sum of consecutive naturals, for example, 2349 + ... + 2528.

2⁴³⁸⁹³⁰ is an apocalyptic number.

438930 is an abundant number, since it is smaller than the sum of its proper divisors (702522).

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

438930 is a wasteful number, since it uses less digits than its factorization.

438930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4890 (or 4887 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 438930 is about 662.5179242858. The cubic root of 438930 is about 75.9973452443.

The spelling of 438930 in words is "four hundred thirty-eight thousand, nine hundred thirty".