438498 has 24 divisors (see below), whose sum is σ = 1006668. Its totient is φ = 137472.

The previous prime is 438479. The next prime is 438499. The reversal of 438498 is 894834.

It can be written as a sum of positive squares in 2 ways, for example, as 393129 + 45369 = 627^2 + 213^2 .

It is a plaindrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 438498.

It is not an unprimeable number, because it can be changed into a prime (438499) 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, 411 + ... + 1022.

2⁴³⁸⁴⁹⁸ is an apocalyptic number.

438498 is an abundant number, since it is smaller than the sum of its proper divisors (568170).

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

438498 is a wasteful number, since it uses less digits than its factorization.

438498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458 (or 1455 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 438498 is about 662.1918151110. The cubic root of 438498 is about 75.9724045705.

The spelling of 438498 in words is "four hundred thirty-eight thousand, four hundred ninety-eight".