438225 has 12 divisors (see below), whose sum is σ = 724656. Its totient is φ = 233680.

The previous prime is 438223. The next prime is 438233. The reversal of 438225 is 522834.

438225 = 68² + 69² + ... + 117².

It is not a de Polignac number, because 438225 - 2¹ = 438223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 438195 and 438204.

It is not an unprimeable number, because it can be changed into a prime (438223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2847 + ... + 2996.

It is an arithmetic number, because the mean of its divisors is an integer number (60388).

2⁴³⁸²²⁵ is an apocalyptic number.

It is an amenable number.

438225 is a deficient number, since it is larger than the sum of its proper divisors (286431).

438225 is a wasteful number, since it uses less digits than its factorization.

438225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5856 (or 5851 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 438225 is about 661.9856493913. The cubic root of 438225 is about 75.9566350024.

The spelling of 438225 in words is "four hundred thirty-eight thousand, two hundred twenty-five".