438870 has 16 divisors (see below), whose sum is σ = 1053360. Its totient is φ = 117024.

The previous prime is 438869. The next prime is 438877. The reversal of 438870 is 78834.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 14629 = 438870 / (4 + 3 + 8 + 8 + 7 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7285 + ... + 7344.

It is an arithmetic number, because the mean of its divisors is an integer number (65835).

2⁴³⁸⁸⁷⁰ is an apocalyptic number.

438870 is an abundant number, since it is smaller than the sum of its proper divisors (614490).

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

438870 is a wasteful number, since it uses less digits than its factorization.

438870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14639.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 438870 is about 662.4726409445. The cubic root of 438870 is about 75.9938822407.

The spelling of 438870 in words is "four hundred thirty-eight thousand, eight hundred seventy".