438445 has 8 divisors (see below), whose sum is σ = 601344. Its totient is φ = 300624.

The previous prime is 438443. The next prime is 438467. The reversal of 438445 is 544834.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 438445 - 2¹ = 438443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438443) 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, 6229 + ... + 6298.

It is an arithmetic number, because the mean of its divisors is an integer number (75168).

2⁴³⁸⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

438445 is a deficient number, since it is larger than the sum of its proper divisors (162899).

438445 is a wasteful number, since it uses less digits than its factorization.

438445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12539.

The product of its digits is 7680, while the sum is 28.

The square root of 438445 is about 662.1517952856. The cubic root of 438445 is about 75.9693435913.

The spelling of 438445 in words is "four hundred thirty-eight thousand, four hundred forty-five".