438630 has 16 divisors (see below), whose sum is σ = 1052784. Its totient is φ = 116960.

The previous prime is 438623. The next prime is 438631. The reversal of 438630 is 36834.

438630 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 438630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438631) by changing a digit.

438630 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, 7281 + ... + 7340.

It is an arithmetic number, because the mean of its divisors is an integer number (65799).

2⁴³⁸⁶³⁰ is an apocalyptic number.

438630 is an abundant number, since it is smaller than the sum of its proper divisors (614154).

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

438630 is a wasteful number, since it uses less digits than its factorization.

438630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14631.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 438630 is about 662.2914766174. The cubic root of 438630 is about 75.9800270692.

The spelling of 438630 in words is "four hundred thirty-eight thousand, six hundred thirty".