438425 has 24 divisors (see below), whose sum is σ = 624960. Its totient is φ = 302400.

The previous prime is 438419. The next prime is 438439. The reversal of 438425 is 524834.

It is not a de Polignac number, because 438425 - 2⁴ = 438409 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 438394 and 438403.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 438425.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6140 + ... + 6210.

It is an arithmetic number, because the mean of its divisors is an integer number (26040).

2⁴³⁸⁴²⁵ is an apocalyptic number.

It is an amenable number.

438425 is a deficient number, since it is larger than the sum of its proper divisors (186535).

438425 is a wasteful number, since it uses less digits than its factorization.

438425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 108 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 438425 is about 662.1366928362. The cubic root of 438425 is about 75.9681884408.

The spelling of 438425 in words is "four hundred thirty-eight thousand, four hundred twenty-five".