538278 has 32 divisors (see below), whose sum is σ = 1188096. Its totient is φ = 161568.

The previous prime is 538267. The next prime is 538283. The reversal of 538278 is 872835.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5175 + ... + 5277.

It is an arithmetic number, because the mean of its divisors is an integer number (37128).

2⁵³⁸²⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (594048).

538278 is an abundant number, since it is smaller than the sum of its proper divisors (649818).

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

538278 is a wasteful number, since it uses less digits than its factorization.

538278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188.

The product of its digits is 13440, while the sum is 33.

The square root of 538278 is about 733.6743146656. The cubic root of 538278 is about 81.3458765629.

It can be divided in two parts, 53827 and 8, that added together give a palindrome (53835).

The spelling of 538278 in words is "five hundred thirty-eight thousand, two hundred seventy-eight".