498138 has 8 divisors (see below), whose sum is σ = 996288. Its totient is φ = 166044.

The previous prime is 498119. The next prime is 498143. The reversal of 498138 is 831894.

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

498138 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 498099 and 498108.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 498138.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41506 + ... + 41517.

It is an arithmetic number, because the mean of its divisors is an integer number (124536).

2⁴⁹⁸¹³⁸ is an apocalyptic number.

498138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

498138 is a wasteful number, since it uses less digits than its factorization.

498138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83028.

The product of its digits is 6912, while the sum is 33.

The square root of 498138 is about 705.7889202871. The cubic root of 498138 is about 79.2714053508.

It can be divided in two parts, 498 and 138, that added together give a palindrome (636).

The spelling of 498138 in words is "four hundred ninety-eight thousand, one hundred thirty-eight".